Is it worth it? | 3.7L Intake Manifold and Throttle Body | 2008-2012 Honda Accord
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- Опубликовано: 26 июн 2016
- We answer the age old question of "Is the 3.7L Intake Manifold and Throttle body from the Acura TL SH-AWD a worth while mod when added to the 8th Generation Honda Accord?"
This is a very popular mod with quite a wide range of j-series engines. It works with all V6 model Accords from 2008-2012.
All the parts were purchases from Heeltoe Automotive www.heeltoeauto.com 
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I own an 09 Acura TL with the same J35 motor and I purchased the same set up as this guy except for the HFPCD, I just got the PCDs. Made 271whp on the Dyno with a K Tune, my tuner also dealt with the rev hang by adjusting the idle.
Sounds like this is a mod I will differently be doing.Thanks again.
Would be nice to see a follow up vid after a proper tune!
Nice work. Was looking for the follow up video. Subscribing!
Thank you for making this video
Can you pleae tell what part # for the Ingalls Damper.?
I have a 2006 Acura MDX 3.5L. Can I install a 3.7L manifold on my 2006 Acura MDX 3.5L? Do I have to cahnge the TB?
Any dyno before and after? I plan to do this to my accord
This might be a dumb question but will a Ktuner be compatible with a Auto 2010 accord ex-l v6? I know im going to get shit for it just being Auto but i would love to test.
Hey buddy got a question..
Would a J35Y4 engine from a 2015 RLX Fwd fit a 2018 TLX Fwd (J35Y6).
Will it bolt on directly on the tlx transmission?
Se puede poner un motor automático a un honda Accord V6 J35Z3 estándar o que motor se le puede adaptar ?
You wouldnt happen to know part#s im very interested in doing this mod on my 2012 v6 accord.
Hey have you ever Dyno tested this mod? It would be cool to see the results.
thanks for the video man I think this will be in my future then :).
The03artist thanks for the feedback and glad I could help you with the decision
Will that 2008 Acura TL intake mess up the transmission it a 2004. If change it out
What would be a good intake upgrade for the 02 j30 not sure if i can do j37 swap or have to go with 35
No tune required after right on a j32 07 TL?
I have all this plus more and find it's all worth it, but a tune is required to get the best out of these upgrades!!!
I used to have the HFPC's but blew out the internals within abt a year...swapped them out for PCD's and the rear one kept snapping (in addition to the bracket holding it in place) cos of torque during launches smh...ended up getting custom brackets made for the PCD's which have held up....so far!!!
Good video
Which hfpc did you have?
Just got my Kit today... Few questions:
1) I don't think the J35 has the actuator assembly / by pass valve system on the left of the intake manifold (attached to the cover), did you actually end up using this somehow? or is just dead sitting there?
2) I believe there is a black pipe that I think is the EGR Pipe that gets bolted inside the IM before you close the top plate... Did the J35 have the same thing? (From drawings I didn't see any) Did you have to order your own bolts?
Thanks!
Wei Wang if you have a manual transmission then you will have the butterfly valve on the top plate. If you have the automatic there will be no butterfly valve. Also you need to put the black pipe in there and if your kit didn't come with one reuse the old one. Also I did have new bolts but only because I bought the manifold spacer which requires longer bolts. Hope that helps
Hey is this a straight bolt on upgrade I saw in sum forums it said you had to drill holes to make it fit
Is this manifold and throttle body worth putting on a j35y2
do i need 3.7 TB for a 3.7 intake manifold, for my o8 type s manual trans
How come you didn’t throw crank in for V6 3.7 crank
Will the 2013 3.5 v6 fit on the Honda accord?
Thank you for the info Matt O'Hearn.I see you stuck the torque dampener on it, but do you think there would be any advantage with an automatic vs 5 speed manual.
ya it would help both automatics and manuals the same by reducing the engine flex caused under load. it does take some modifying to get it to work because you need to drill out the holes on the mounting plate to make it fit on the bolts because it is actually made for the 7th gen accord which is slightly different.
When did you get the ETD from
Will this be a good upgrade on my 07 TL type s auto ? I Only have a cold air intake and cat back exhaust on it. J-pipe arriving soon. I've been eying it for some time Thanks for the help/ input
you already have a really good IM on that car.
Your Revs still hanging? I read on a ZDX Swap forum post that one of the lines that goes into the ZDX IM isn't used or something and must be sealed, or else he gets a 1.8K rev hang?
You get the tune yet? any updates?
i installed the k-tuner and used their out of the box tune. i then messed around with it a bit and got rid of the rev hang. it definitely helped and im excited to see what it will do when i get a dyno tune but i just havent gotten around to it because the closest tuner is like 2 hours away. i think that the line you are talking about has to do with the VCM or not and since i have a manual i had all the proper lines to connect and didnt have to block off that one port.
how much less gas does ur car have now? does it kill alot
Benifits with a tune or not tuned?
Hey ACCORDingtoWill, I have a J35Z2 and would like to put this in my car (IM and TB) Is this the kit from heeltoeauto or did you hunt down the right parts yourself? If you did, can you tell me what I need to get? DO I just buy and 08 TL 3.7 IM and TB?
What u end up doing?
Why didn't you film installing all that gravy? How much did all the parts set you back? Nice video.
haha I didn't think about it to be honest. I think I was all in about $1000 for the parts but that includes the manifold, throttle body, 3 thermal gaskets, the intake spacer and the Acura top plate.
Question, is this the magnesium or aluminum tb ? I have a J35y1(AT) 9th gen, is it straight bolt on ? I’m interested in doing this but want some inquiries on what to buy and where because there is alot out there on the web
It's magnesium.. Weighs like 7 pounds compared to the 25 pounds aluminum intake of the j32a3
Would like to know if the stock cat from 3.7 TL are higher flow than 3.5 cat and do they bolt onto 3.5 engine
Yes for both
Quick question before I order this all for my Honda. Did your intake from your stock throttle body fit on the j37
Or you need a new intake to fit it. I was going to order the k&n for my stock manifold and tb but if I change it to the j37 is that going to affect it fitting
The intake will still fit but you will need a new coupler. My takeda intake came with 2 couplers; one for the accord, and one for the acura TL since the intake fits both. I just swapped out the coupler to the second one for the TL. If your intake doesn't come with it you could easily get one from HPS or somewhere.
Gotta tune it. My accord (j35z3) has RV6 j-pipes, aluminum throttle body spacer, cold air intake, and flow master mufflers and ktuned and it has a better pull. If you ktune the car it will be wayy more powerful and take my accord to gapplebees
Did you dyno your car before and after this install?
Great video bro! Thanks for sharing this wonderful upgrade on your Accord!
I have a J35z3 and was very interested in doing this j37 IM and TB upgrade, is it basically plug and play, with no extra Modifications?
Any info would be great! TIA
Glad you liked the video. And yes for the j35z3 it is a direct fit plug and play. For the z2 (automatics) there are a could vacuum lines that need to be plugged I believe.
Thank you! Very much appreciated!.
I own 2010 honda odyssey. With 3in downpipe 3in xustom exaust. Intake and shipped. I go from 240hp engine to 300hp at wheel on dyno. Add this...it would be awesome.
Jean Philippe Landry muffler shop made it for u? Or?
Carlos Sanchez custom stainless
Still trying to figure out if this whole upgrade will work on a J35A4 . The throttle body in the kit is drive by wire and i have a cable type. Any advice, anyone?
Gaza A.D heeltoeauto is making a converted kit to use on older j engines
I installed mine on a 4dr Accord v6 and I hear a slight whistle when I press the gas sometimes I made sure to install everything back correctly is that the rev hang or something else?
you have a small air leak somewhere. try tightening down your manifold bolts again. if that doesn't fix it you may need to replace the gaskets or add some type of gasket maker to seal it better.
Do you have a custom intake?
Spacer.
How much does a swap like this cost
I'm looking to do this on a 2008 Acura TL type S.Did you find that the revs went back to normal over time?Can you post a link to the site you purchased the manifold from.Thanks for any info Matt O'Hearn.
I used Ktuner to reduce the rev hang. All the parts were ordered from www.heeltoeauto.com, they have a package deal that includes the manifold and throttle body and gaskets if you want.
Dean Swarbrick I plan on doing this with my 08 TL base. Did you end up doing it, and if so, how did everything work out?
Do you have a manifold spacer too. You can also change the crank to the CRV crank
yes i have the p2r manifold spacer. which CRV had a v6? and what are the benefits of changing the crank?
so how is it preforming still hae the rev hang? im going to doing this to my 03 cls6
Matt Ohearn it's still performing well. I installed the k-tuner base map and then messed around a bit to get rid of the rev hang so it's all gone now.
thank you!
Matt Ohearn no problem! Have fun with that
Are you talking about the acura cl-s 03 6spd?? Did you do it ?? Any gains?? How many horsepower you think ?? 10-15?
AccordingtoWill what u did to get rid of rev hang
yo man like the build, congrats.
was wondering which site did you purchase all the parts from?
Jaafar omar thanks bro. I ordered them all from www.heeltoeauto.com. They have a real nice package that includes them all and they will work on the price the more you buy. Send a request through their customer pricing on the website
Did you have any other problem with this swap . I did the swap of the intake and throttle body but also added the lowerintake runners that are port and polished. I had some idle problems and it wouldn't stay at idle without help. Let me know thanks
Did you ever find a solution for this? I literally just finished installing mine and I’m having the same issue and I have a check engine light now. It’s the code po507 and it means that the idle is to high and the ecu doesn’t know what to do. I have a k-tuner but idk how to tune this😂
@@joeruiz8078 my problem was with the shape of the intake ports the 1st set of lower intake I received ended up being the ones for a a6 and mine is a a7 the company I bought from set wrong set I received the correct set installed an problem is gone its been almost 2y since I did it and it's worked great . No problems I do not have a k tuner on my set up .
@@allautollc1 ahhh, mines having idling issues right now. I’m not sure what’s going on
just picked up a 2008 j35 coupe. my goal is to get to the low 300s. open exhaust, cold air intake, tbs, and this intake manifold should do the trick right? and im assuming when i buy the cold air intake and tbs i should purchase them according to the 80mm throttle body, and not the original j35 throttle body size, right?
Low 300s is a lofty goal but what you have suggested will get you pretty close. You will need a tune (k-tuner) and a good tuner might be able to get you over 300. But yes you will need the tbs for the TL or ZDX which have the larger TB.
cool thanks. I figured 300 was a realistic goal, without having to go too crazy. I have heard a lot of good things about ktuner, i'll look into it
With your atlp quad exaust, Did you get the resonated one they make or non resonated? Cant decide which one will sound best. Also do you have a j pipe or is the catback system from heeltoe the only exhaust mod you have?
I have the full ATLP quad exhaust with the resonator, as well as the ATLP j-pipe and ATLP 3rd cat. Its the best sounding exhaust for the accord in my opinion!
I live in cali so pretty sure i cant delete any cats because of emission laws. I was gonna just get the non resonated version of the atlp quad exaust but might not because im worried how it'll sound without a j pipe
it should sound fine. when you get a j-pipe eventually it will open up the exhaust a little more and make it sound even better. you can use the ATLP j-pipe and retain your 3rd cat, or switch to a high flow 3rd cat like i did.
What Intake manifold and throttle body from the tsx would be best on my 07 3.0 accord?
I've heard that the TL sh-awd manifold flows the best but can't find any hard data to support that. It does have the largest j-series throttle body though which is why i chose that combo instead of the slightly smaller ZDX set. don't know which would work better for your 3.0 tho
I'm considering doing this upgrade for my 2002 Honda Odyssey J35A4
Did you end up doing it? Looking for options for my pilot with same engine
aby Dino results, before & after??
Want to know if the cats are bigger in the j37 engine and if yes does it bolt onto the j35 motor??
Is installing an 09+ 3.7 manifold possible on a J32A1 from a 2000 TL?
as far as i know yes its possible to put this mod on any j-series
Do you have the J pipe deleted cats 3 inch or 2 1/2 all the way back to single stock exhaust
stock pre cats, atlp j-pipe and 2.5" atlp quad exhaust
I am not able to find the engals torque stiffy for the 4G TL anywhere. is this a 3G model that is interchangeable?
I had to use one made for the 7th gen accord and widen out the holes to make it fit the 8th gen. I'm not 100% sure that is the same in your case, but likely would work.
Someone make a before and after pull video
Did you have any trouble with the hoses being too short when reattaching after install?
they were tight but i made it work. I did cut a bit of the tape back to make it fit better.
Help. A 2nd gen TL 3.5 can take a throttle body, Mani and spacer from a 3.7???
Or next gen RL?
Nice setup man im gonna go the same way did u get the non resonated version on the atlp system?
I’m sorry and I know this is an old video but if anyone could answer this would help a lot. I have a 2012 V6 AT with a Takeda SRI. If I was to install this manifold on my engine would i have to buy a new SRI to fit the manifold?
Heeltoeauto sells HPS couplers for your Takeda Intake that will allow you to run it with the J37 throttle body.
Hi, I have an 03 accord V6 and I've been looking at doing this kind of work for a long time, using the 3.7 acura IM and TB as well as a 3.5 camshaft. It should all work for mine too, right? with the 3.0L? alos, I have generally heard that TB spacers aren't really worth it, do they seem to go a little further with the J series? thanks for the upload, awesome results!
the 3.7 IM and TB will work fine but im not sure about the camshafts. do you have some sort of tuner? k-tuner? Hondata? if so you should be able to make it work but changing cams without a re-tune might cause driveability problems. as for the TB spacer, yes i generally agree but i did not install a TB spacer. I installed an IM spacer which is different because it raises the manifold from the bottom up essentially lengthening the intake runners. honda does this from the factory on the larger vehicles such as the ridgeline, pilot etc. and in theory the manifold spacer is supposed to shift the torque curve down to make more torque at lower RPM.
Unfortunately, I have not been able to find a hondata tuner for the accord auto trans, and while I do want to swap the transmission thats just a bit further out do to time and cost. but if I can just start with the IM, TB, spacer, and exhaust it sounds like that will go a long way!
Is your Ktuner the reflash or the in-ecu? I've also read a lot about non hondata tuners just sorta getting week and reverting back to normal and needing to be retuned a lot, does Ktuner do that or is it constant like hondata?
I have the k-tuner reflash. I'm still on the base map tune, waiting on a couple more parts before I get it dyno tuned. I'm not sure about the consistency but it's working well so far
Ok. So I just watched a how-to video where a guy shows how to ktuner reflash an accord. Looks good, if I got the reflash I'd be able to adjust to accommodate for a J35 camshaft, correct?
Did you ever DONO it yet to see if there was gains for HP and torque?
i also have a 08 accord v6 6 speed , do we need to get the car tuned after this mod?
you don't have to but you will get more out of this mod if you do
Did you see any gains
Hello, did you have to perform a throttle position reset?
no i didnt. i drove the car with just the bolt ons for about a month before i installed the ktuner. the car learned itself how to adjust, but the ktuner definitely helped especially with the rev hang
ACCORDingtoWill which ktuner you got?
One is like 469.00 and the otger is like 649.00 v1 and v1.5 if am not wrong
Hello
I have a question.?
I have 2009 accord v6
I buy the Ingalls damper. But it did not fit
How can you make it fit.? Please help.?
You need to drill out the holes on the bracket that goes under the strut tower bar. Once you do that it will fit no problem
Thank you
hey will. i have the 2012 accord 6x6 and want to buy the kit.. but living in nyc i can always find wreked tl's and rl's .. do you know if the j37 from the rl is the same as the one from the tl??
aoescool I don't know exactly but I would think any 3.7 manifold would work because when I was looking into this there were guys suggesting the zdx manifold and tb as a cheaper option. Personally I stuck to the TL-shawd because I had read that it was the lowest height profile (because I was running the p2r manifold spacer) and that it was the best flowing of the intakes. Also stuck with the the shawd tb because it has an 80mm tb vs the zdx 78mm. However I do know that there are guys that mix and match manifolds and tb's
COOL.. earlier i saw a 2010 tl shwd totaled in jersey.. gonna hit them up and see if they can let the manifold go for cheap!!
ya man go for it, that is the way to get these parts cheap
Will this mod work on a J35S1. Saturn Vue with Honda 3.5L engine/transmission.
as far as i know it will work on all j series
Would this work on an 01 Acura CL-S 3.2? It's the J32A2 motor.
as far as i know it would work on all j series
I could put this one to my Honda Accord coupe 2008 v6 auto right ?? Just double checking
yes you could
Hey question I just saw your vid from
Google I want to kno where you got the part at I can’t find the manifold anywhere but I can find the throttlebody on eBay for like 70 dollars
I got everything from HeelToe Automotive. They are very knowledgeable and helpful with any questions you may have.
what about 3.5 manifold and 3.5 throttle body on a 3.2 ? i heard if you add a 3.7 mani and throttle body you will need a tune to get it running right
From what I've read from other TL users, you will lose a small amount of power until you get your car tuned.
i don't know, never owned a 3.2
So how has the Infiniti/Nissan you sold this car for been treating you? In my opinion all Nissan products after 1999 are junk compared to how they used to be. (long term reliability)
Where’d u buy the stiffy
Hey will this fit my 2010 exl coupe by auto. I want to do ktuner as well.
Jomar Roman yes as long as your a V6
Did you ever dyno it afterwards to see the gains.I'm looking to get the max hp out of bolt on performance.
Dean Swarbrick not yet but getting a custom dyno tune is on my list of things to do this summer
ACCORDingtoWill did you ever find out bro?
Can u put this in A 2006 v6 accord direct bolt on throttle body n all.? Or no please help
the manifold should work no problem, but i do not know if the 06 is drive by cable or wire. if it is wire then the throttle body should work as well.
Wait if 3.7 is upgrade so it means that your engine is smaller, right? 3.2; 3.5? Or also 3.7 but you installed better one?
i have a 3.5L. the 3.7L from the TL sh-awd was rumoured to have the best intake manifold for flow plus it had a much larger throttle body which is why i chose it.
Where did you get the angle damper? Am trying to find it
its actually for the 7th gen accord v6 years 2003-2007. all you need to do to make it fit the 8th gen is drill out the bolt holes for the mounting plate on the strut tower.
I wonder if you can do this with the 2008 through 2012 Honda Accord coupe 2.4 and acura's 2.4
2.4 is a 4 cylinder.. So it will not..
what about for the 7nth gen? 03-07 what year parts of a acura fit on the 7nth gen accord.
adrian Perez ever find out the answer to this?
The j37 intake manifold should bolt up to all j35s
@@chadm528 7th gen accord has a j30, not a j35
@@mattkilgariff7884 the j37 intake kit will bolt up to j30 just purchased mone from "heeltoeauto.com" all brand new parts for just under 900
@@dc4vato715 I did the same thing! What CAI did you go with?
You mentioned an ingalls torque damper for the TL I think?
I'm having a hard time finding it and want to buy it! Great review!
thanks man, but ya the installs torque damper is for the 2003-2007 accord v6, but all you need to do is drill the holes for the bracket on the strut tower to fit the larger bolts on the 8th gen accord. here is a link to the product www.heeltoeauto.com/ingalls-stiffy-engine-torque-damper-etd-2003-07-accord-v6-jdm-inspire-93051.html
ACCORDingtoWill I've got a 2013 Acura TL. it's a car I just bought a few months ago... still trying to get a good handle on the mods.
Thanks for the link! I'll keep poking around
Did you have to purchase the block off plate for the side of the manifold where the butterfly actuator would go?
no i did not have to buy a block off plate because i have the manual transmission j35z3 engine which has the active butterfly valve so i was able to utilize the acura top plate with the butterfly valve as well.
ACCORDingtoWill I gotcha. Thanks bro
will it fit on a j32a2 engine? did you encounter any issues while installing it?
from what i understand this mod will work on all j-series but i cannot say for sure about your specific engine. i did not have any issues while installing it was a direct bolt on
ACCORDingtoWill What engine do you have?
Yes it does fit, but you'll need a B-series TB + an adapter, and the IMRC won't work.
There is a video of a guy who did it on his 3.2
Will this fit a 09 accord sedan 3.5l ? I have stock dual exhaust
Chris hicks yes this will work
Awesome video,
Did you order everything new of a acura website?
jason nystrom hey man I ordered all these from www.heeltoeauto.com. They have a package for the manifold and throttle body.
Where did u bought those?
So is it worth it??
Just wondering why did you purchase the top plate kit for the manifold? On heeltoe it says that 2008-2012 V6 Accord Coupe doesn't need it since the oem one can bolt right on. No butterfly valve needed either? Just wanna make sure that's accurate before i purchase the manifold too
you don't need the acura cover but it does have a butterfly valve, i bought it for the coolness factor
@@ACCORDingtoWill it does look freakin sick lol. I just ordered the tb and im today. Any weird issues to install or is it pretty straight forward? I know some bolts from oem manifold get reused for the new one. Does the tb have the same sensor locations as oem j35 tb?
@@j35ray it was very straight forward, only thing i would suggest is getting some copper gasket spray to coat the manifold gasket on both sides to create a good seal. I did not use any and had a whistling noise that drove me crazy
@@ACCORDingtoWill thanks for all the tips! The J series community appreciates it lol i see you responding to others even though you sold yours.
@@j35ray no worries bro that's what the car community is all about!
Would this work with the 2004-2007 v6 Vue? You may say, um that's a Saturn... little fact, the 2004-2007 v6 Vue has a j35 in it.
JM811Cars I did not know that but if it has a j-series then this mod should work
JM811Cars the 4cyl vues were k24 engines as well lol
MrJk009 no they were not.
MrJk009 the 2.2 and 2.4L 4 cylinder Vues have Cobalt motors in them, not Honda motors.
4cylinder vues were ecotec. still probably the most bulletproof 4cyl that gm ever made though, look at all the Cavaliers still on the road.
On 7g J30 it's 100% worth it. 3.7 IM & TB I gained 15whp, 2mph in the 1/4 mile and 3 cars from 40-120 on the street.
Damn seriously?! Been looking for answers on this mod everywhere! Have an 04 coupe 6-6 pcd's, 3rd cat delete, aftermarket header pipe/j pipe (2.5"), and a cold air intake. Those mods opened up my car a ton (check my vids, got some races against the same mustang before and after those mods). Yesterday just got in my j37 mani and t.b cant wait to install! The mani i have is from an A/T, anything I should need before bolting it right on (barring re-routing/jumping the imrc plug)
@@auston.e8493 Bolts right on. Only thing is the AT manifold doesn't have butterflies, so you may lose a little low end before 4k RPM, but nothing to worry about. Stock catback? If so, you may not gain quite as much because that will be your bottleneck, but you will definitely gain. It made a huge difference when paired with all other intake and exhaust mods. I also had the manifold ported to match the gasket. Make sure to get new gaskets as well.
@@sonnick nice! Catback is soon to come as well as a new clutch this summer. What size catback wouls you recommend? Also, is an air fuel tuner going to be necessary at all with these mods or should I go full tl ecu/hondata..or just leave it? Hard to find info on what I might gain here and there. You're build has steered alot of mine, seeing yours put down that power has me hunting.
@@auston.e8493 Since you have s 2.5" Jpipe I would say 2.5". Otherwise, I would recommend a 3" Jpipe collector and 3" exhaust, or a cutout if you want to be quiet around town. Hondata for sure. I've been out of it for a little while, but I think people have gained ~10whp/tq with it. I miss my car so much 😥
@@sonnick 2.5 was my findings but, with the dual piping wasn't quite 100% sure.
where did you buy the manifold and throttlebody they look new
Yes they are new. I bought them from www.heeltoeauto.com. They have a great package deal for the manifold, throttle body and gaskets.
Was there any kind of smoke after you did the installments?
there was no smoke from these parts
Throttle body will only work if you get the intake manifold also...am i correct?
there are a couple throttle body adaptors on the market, but I am not sure they are the best because you would have a restriction behind the throttle body due to the size difference.
Porta manifold and port to head shave down to cam they say on this car big difference
XP dJ I’ve read in the acurazine forums that you can swap in the cams, springs and valves from the 03 6 speed type s into the 01 stock heads because the 03 valve train and cams are more aggressive. Not sure how well that’ll work though.
hey one quick question, will this mod work in a 2007 acura RL? thanx and good video
jonny aguirre I believe this will work with all j-series
ACCORDingtoWill , oh ok, ill look to do this upgrade, thanks 👍
J37 intake I want to fit on my j30a1 but is possible?
as far as i know it will fit all j series, but i only actually installed it on a j35z3
Will this modification fit a 3.2l acura tl?
tony gordillo yes
Would i be able to just get the tl throttle body only or no ?
not without an adaptor plate
How is the intake manifold spacer installed?
you need to disconnect the intake piping, then take off the manifold top plate, then take off the actual manifold. there are 2 guide bolts in the intake runners that you need to use the double nut method to take out. then you can install the manifold spacer between the intake runners and intake manifold, then reinstall the top plate and intake piping.
I know its expensive but i would recomend getting tunning software before doing bolts ons, otherwise the car will run weird because the factory tune is specific to the stock parts.
Can I tune it after with the bolt ons already?
You'll see gains without tune.
The other lighter a crank so it’s going to spall up more and faster more power people have been getting rods and pistons and shave in the cam on that motor and they saw a big differences they don’t make cams for that car seat at the shave it down