Thanks for reply. The exhaust is still like it came in the box, Some people recommend to replace the front sprocket for a smaller but I dont want to rev the engine too much on the highway
DSOXBLADE Removing the baffle increases airflow. This can cause unwanted side effects on a bike with stock fuel injection mappings. Adding a unit such as a Power Commander and setting a custom map would sort this issue and probably add some more HP.
@theFithWheel if the air fuel mixture isn't as rich, the bike is burning fuel more effectively rather than sending it out of the tail pipe as raw fuel. MPG will probably stay the same for round town sensible riding but will no doubt drop substantially when wide open throttle is the norm. Dave Moss Host
@motoseteo wide open exhausts don't create enough back pressure to scavenge all the burnt fuel from the cylinder after combustion. Put the insert back in and back pressure returns, cleaning the cylinder out of all burnt fuel. You need a flowed head with cams and degree wheels plus fuel mapping to use a wide open exhaust and that's a lot of money invested. Dave Moss Host
@SportsSavage we set the bike up using only the exhaust and no power commander type fuel management system. If you want the perfect fuel map, you need to get that equipment. The bike ran well enough that we didn't see the need for extra money to be spent in that direction. Dave Mos Host
@SportsSavage honestly there are 2 tings you need. 1. A smaller rear sprocket to bring the rpms down and give you greater fuel economy and 2. a fuel management system that gives you much better fuel efficiency. Tie that in with a Leo Vince system and you will have a bike that gives the best fuel economy and engine performance Dave Moss Host
My honest recollection is a 5-7hp gain. Not much in the grand scheme of things for a 33bhp bike. The big gain will be with the remap of the fuel injection making the bike have a much smoother throttle response. Dave Moss Host
What is the difference in performance if you are just installing the Slip-on for this bike? as I am getting this exhaust fitted to my new 2011 Ninja 250R Next year coming. I am from Guernsey in Europe here we have the jetted versions of these bikes a posed to the carbed ones you may have in the US :S
@BdoG91 the bike went through jetting and needle position changes based on ambient temps. As with all carbs, they are sensitive to air temp, air density etc and while changes need to be made, they are quite subtle unless you put altitude into the equation. Dave Moss Host
In all cases with fuel injection it is better to buy the module and then have the fuel injection system mapped professionally. Using drop in air filters and altering the air box may or may not improve fuel mapping and therefore overall performance. Dave Moss Host
manufacturers work with different thoughts in mind. More peak power or more torque, or improved performance in the middle third of the power band. Some are quiet some are not. Leo Vince tends to offer much more mid range making much more usable power for the street and track and with the quiet inserts, you can adjust the noise level to your needs. Dave Moss Host
For fitting an exhaust or changing the chain and sprockets? That's a very straight forward task to undertake for any motorcycle repair shop. Actually taking the time to map the fuel injection requires some careful research indeed to find someone that can do that task.
with the prior generation 250, there's no pipe listed by Leo Vince. I don't know, so I would do 2 things:- measure the distance between the headers on the new and old generation and check the exhaust mount on both. Dave Moss Host
did you guys rejet this or anything? after the install or is it just full system swap then straight back on the dyno? also would the affects be different between carb model and fuel injected one??
Respond to this video... wide open exhausts don't create enough back pressure to scavenge all the burnt fuel from the cylinder after combustion. Put the insert back in and back pressure returns, cleaning the cylinder out of all burnt fuel. You need a flowed head with cams and degree wheels plus fuel mapping to use a wide open exhaust and that's a lot of investment. Dave Moss Host
It depends on the track and anticipated top speeds. You gear for that first then make minor modifications for rpm's when coming out of the corner. Check with the local fast guys on the same bike and change slightly from that eg: they run 14/45 and you are 6 seconds slower run 14/43
I've got a 2011 ninja 250 motor built to 12.8:1 compression fitted into my 2006 ninja. Still running the stock 2011 exhaust. Can't decide what aftermarket exhaust I want to go with. Any suggestions?
It makes more sense to try to eke out a few more HP from a low power bike like a Ninja 250 than it does a 1000 CC super bike that's already sending 170hp to the ground.
Yeah, I didn't realize it was on a race bike. My apologies. Hey Dave, are you going to be near Sanoma this summer in CA? How much do you charge for setting up suspension? You can PM if you want, or I'll PM you. Either way. Lol. Thanks, great videos!
I own a aprilia shiver 750 2010 and i was thinking about changing my exhaust. what model would you recommend? I looking for a low sporty sound and the highest possible HP increase. Also do you guys have a custom map for the aprilia?
It does need some tuning, to get the carbs were they should be, and it would do even better say another 8 to 10% ? But going FI would be even better for tuning, with the programs out today to get it mapped properly.
@moshn no worries, it makes more power with the silencer in with pump fuel. If you moved to race gas and a remap the silencer would come out. Dave Moss Host
I upgraded the stock exhaust to a leovince slip on and lost a bit on the low end, I liked the response of the stock exhaust, is there some way to make the bike more responsive?
Hi there, ive just bought the leo vince header pipes for my 2011 FI ninja 250R it currently has installed on it K&N drop-in air and oil filter along with a leo vince exhaust CAN. I am just wondering if or not to buy the Leo vince fast injeciton module. I'm also wondering what kind of benefits would my bike reap with the full pipe and a good map from the module woud this setup if I had 2 holes punctuared into the air box for better air flow work well with the maps on the fast injeciton?
i have a 2011 Ninja 250R FI (33bhp) if i install a LV One Evo II Carbon FULL SYSTEM what gains can i expect please be honest cause here in India it costs $1100
@boedy234 in the US there's no carbon can listed as available. As such I cannot add any further information. You can email Leo Vince direct - they are very helpful people! Dave Moss Host
something tells me this is a huge scam, watching videos with other 250's with custom exhausts, gaining a max of 1-2 HP, how did you magically gain 7 HP just with an exhaust change....
maybe since it was a race bike it was already set up for that exhaust, or maybe he only did one run on stock and as the motor warmed up it performed better. who knows but I can't imagine changing a pipe that probably wasn't that restrictive to begin with is going to add nearly 1/3 of the engines original power
@BdoG91 that is a good question that staff at Leo Vince USA could find an answer to and I would be curious to find out about. Email them directly via their web site. Dave Moss Host
@napierecaro good question that I don't know the answer to as we didn't take a very close look at this bike in that area. Contact Brain and Feel Like a Pro to see what he did with his race bike for carburetors! Dave Moss Host
I honestly would have liked to hear the engine sounds change throughout the tuming process but i guess you prefer absolutely ruining a great video with copyright free elevator music. Re release this episode without the so called 'music'
did you take out the quiet insert? If so put that back in.
Thanks for reply. The exhaust is still like it came in the box, Some people recommend to replace the front sprocket for a smaller but I dont want to rev the engine too much on the highway
DSOXBLADE Removing the baffle increases airflow. This can cause unwanted side effects on a bike with stock fuel injection mappings. Adding a unit such as a Power Commander and setting a custom map would sort this issue and probably add some more HP.
But this bike has a carb, no FI. So no problems with Fi, or need of a power commander. It would be a fun 250 to ride..((: > ) )
@@ylismhow can I modify my 250r brother want some bhp add and make the sound like a gpz
The inserts are designed to make more power.
This is AFM racer Kirk Korenko's bike. Jetting, race fuel, BRT ignition system with custom mapping.
@theFithWheel if the air fuel mixture isn't as rich, the bike is burning fuel more effectively rather than sending it out of the tail pipe as raw fuel. MPG will probably stay the same for round town sensible riding but will no doubt drop substantially when wide open throttle is the norm.
Dave Moss
Host
@motoseteo wide open exhausts don't create enough back pressure to scavenge all the burnt fuel from the cylinder after combustion. Put the insert back in and back pressure returns, cleaning the cylinder out of all burnt fuel. You need a flowed head with cams and degree wheels plus fuel mapping to use a wide open exhaust and that's a lot of money invested.
Dave Moss
Host
@SportsSavage we set the bike up using only the exhaust and no power commander type fuel management system. If you want the perfect fuel map, you need to get that equipment. The bike ran well enough that we didn't see the need for extra money to be spent in that direction.
Dave Mos
Host
@SportsSavage honestly there are 2 tings you need. 1. A smaller rear sprocket to bring the rpms down and give you greater fuel economy and 2. a fuel management system that gives you much better fuel efficiency. Tie that in with a Leo Vince system and you will have a bike that gives the best fuel economy and engine performance
Dave Moss
Host
My honest recollection is a 5-7hp gain. Not much in the grand scheme of things for a 33bhp bike. The big gain will be with the remap of the fuel injection making the bike have a much smoother throttle response.
Dave Moss
Host
This was a very entertaining and well edited video.
What is the difference in performance if you are just installing the Slip-on for this bike? as I am getting this exhaust fitted to my new 2011 Ninja 250R Next year coming.
I am from Guernsey in Europe here we have the jetted versions of these bikes a posed to the carbed ones you may have in the US :S
@BdoG91 the bike went through jetting and needle position changes based on ambient temps. As with all carbs, they are sensitive to air temp, air density etc and while changes need to be made, they are quite subtle unless you put altitude into the equation.
Dave Moss
Host
In all cases with fuel injection it is better to buy the module and then have the fuel injection system mapped professionally. Using drop in air filters and altering the air box may or may not improve fuel mapping and therefore overall performance.
Dave Moss
Host
I have a 2008 ninja 250 and i the sprocket and chain still stock, do you recommend any other one that can do the job better, thanks.
WOW!! you can change a bikes horsepower just by changing a bikes exhaust!?!?!? i swear this blows my mind!!!
manufacturers work with different thoughts in mind. More peak power or more torque, or improved performance in the middle third of the power band. Some are quiet some are not. Leo Vince tends to offer much more mid range making much more usable power for the street and track and with the quiet inserts, you can adjust the noise level to your needs.
Dave Moss
Host
For fitting an exhaust or changing the chain and sprockets? That's a very straight forward task to undertake for any motorcycle repair shop. Actually taking the time to map the fuel injection requires some careful research indeed to find someone that can do that task.
with the prior generation 250, there's no pipe listed by Leo Vince. I don't know, so I would do 2 things:- measure the distance between the headers on the new and old generation and check the exhaust mount on both.
Dave Moss
Host
did you guys rejet this or anything?
after the install or is it just full system swap then straight back on the dyno?
also would the affects be different between carb model and fuel injected one??
Respond to this video...
wide open exhausts don't create enough back pressure to scavenge all the burnt fuel from the cylinder after combustion. Put the insert back in and back pressure returns, cleaning the cylinder out of all burnt fuel. You need a flowed head with cams and degree wheels plus fuel mapping to use a wide open exhaust and that's a lot of investment.
Dave Moss
Host
I've been thinking about getting a 250 or something similar for a competitive race bike. Please - post more vids with these bikes!!
It depends on the track and anticipated top speeds. You gear for that first then make minor modifications for rpm's when coming out of the corner. Check with the local fast guys on the same bike and change slightly from that eg: they run 14/45 and you are 6 seconds slower run 14/43
I've got a 2011 ninja 250 motor built to 12.8:1 compression fitted into my 2006 ninja. Still running the stock 2011 exhaust. Can't decide what aftermarket exhaust I want to go with. Any suggestions?
HMF exhaust, you're welcome
It makes more sense to try to eke out a few more HP from a low power bike like a Ninja 250 than it does a 1000 CC super bike that's already sending 170hp to the ground.
amazing change, and just with a exhaust change
Fantastic color combo.
Would this work on a fuel injected 2008 model? I suppose it would.
Yeah, I didn't realize it was on a race bike. My apologies. Hey Dave, are you going to be near Sanoma this summer in CA? How much do you charge for setting up suspension? You can PM if you want, or I'll PM you. Either way. Lol. Thanks, great videos!
I own a aprilia shiver 750 2010 and i was thinking about changing my exhaust. what model would you recommend? I looking for a low sporty sound and the highest possible HP increase. Also do you guys have a custom map for the aprilia?
It does need some tuning, to get the carbs were they should be, and it would do even better say another 8 to 10% ? But going FI would be even better for tuning, with the programs out today to get it mapped properly.
Is there a chance that a 2006 ninja 250 can be changed to only having one exhaust pipe either on the right or on the left? Especially A leo exhaust?
Tht wht I want this set fix in2my ninja 250r.whts sort of pilot jet needed for replcmnt.?
because it makes a BIG difference to the rideability of the bike.
Dave Moss
Host
Motor work i heard? What's all been done to it?
for a full exhaust on a 250r, does the leo vince offer the most gains in horsepower, torque, etc..? or does another one like two brothers offer more?
@moshn no worries, it makes more power with the silencer in with pump fuel. If you moved to race gas and a remap the silencer would come out.
Dave Moss
Host
good question! I don't remember what those bars were on this bike - most people use Driven replacements.
Dave Moss
Host
was there a power commander on the bike... or is this just a plug and play full system..!!!????
because in certain countries ex. Indonesia you are limited to the cc's which means you are limited to what bike you can actually have on the road.
I'm sure Leo Vince would be up for that and many local riders here will be going through the same process.
I upgraded the stock exhaust to a leovince slip on and lost a bit on the low end, I liked the response of the stock exhaust, is there some way to make the bike more responsive?
The 8149 type system is the easiest to put on for the most gains as slip on's dont interfere with the ECU and fuel injection.
Dave Moss
Host
no we did not lower the bars. I believe Woodcraft for one makes them.
Dave Moss
Host
What clip-ons are those?
for track and racing, do you recommed stock 14 front/45 rear or something different. How about the chain too, brand is best. Thanks.
this is one hot ninja 250 ! wow
this is the only one we did.
Hi there, ive just bought the leo vince header pipes for my 2011 FI ninja 250R it currently has installed on it K&N drop-in air and oil filter along with a leo vince exhaust CAN. I am just wondering if or not to buy the Leo vince fast injeciton module. I'm also wondering what kind of benefits would my bike reap with the full pipe and a good map from the module woud this setup if I had 2 holes punctuared into the air box for better air flow work well with the maps on the fast injeciton?
Did you lower the handles?
If so, which brand did you use?
Dave can you see this through on front fork and rear shock adjustment ...?
Where can i get those kind of handle bars? i dont like standard bars on a 250r...
what was the difference between the insert and without? which is better?
without any adjustment on the carburetor increased power up to 5 HP?? WOW!!!
What is the back tire size?
Any more than 14k revs and they bend the valves.
Many I know actually go bigger on the front sprocket to help the engine rev less.
i have a 2011 Ninja 250R FI (33bhp) if i install a LV One Evo II Carbon FULL SYSTEM what gains can i expect please be honest cause here in India it costs $1100
I've a bigger rear sprocket by one tooth. Decent comfort for cruising speed at 75-80, if I feel the need to press on.
Yes thank you so much!
I hear that leovince produce some muffler for yamaha FZ150i? or yamaha Vixion in Indonesia? is that right?
Great test. Do you plan to try Leo Vince EVO II with BMW F800 (S,GS or R)? Thanks!
@Vince62965 the difference is a little more on the mid to peak range for power delivery. That is the best value for money.
Dave Moss
Host
what forks are those for goodness sake?
Does removing the baffle always kill power??
@boedy234 in the US there's no carbon can listed as available. As such I cannot add any further information. You can email Leo Vince direct - they are very helpful people!
Dave Moss
Host
is it can install on Ninja 250r Carb??
These European 250's are fuel injected. I wonder if more power could be had with a carb setup with a 108 jet and maybe 2.25 turns outs.
@jamesroydavies please email info(at)leovinceusa(dot)com
something tells me this is a huge scam, watching videos with other 250's with custom exhausts, gaining a max of 1-2 HP, how did you magically gain 7 HP just with an exhaust change....
maybe since it was a race bike it was already set up for that exhaust, or maybe he only did one run on stock and as the motor warmed up it performed better. who knows but I can't imagine changing a pipe that probably wasn't that restrictive to begin with is going to add nearly 1/3 of the engines original power
The bike is not stock, it's had lots of other work done on it, so the results are going to be completely different from a stock bike results.
interesting that with the insert made more power than full open....
@BdoG91 that is a good question that staff at Leo Vince USA could find an answer to and I would be curious to find out about. Email them directly via their web site.
Dave Moss
Host
yep, but then we get even less response. What I want is to increase the response without regearing
Perhaps with the 2013 model you could do another one? :)
@napierecaro good question that I don't know the answer to as we didn't take a very close look at this bike in that area. Contact Brain and Feel Like a Pro to see what he did with his race bike for carburetors!
Dave Moss
Host
Any other 250 mod videos?
Now do for kawasaki ninja 250/300 2013. Pretty pls...
I would say that it depends more on the rider.
Liked and subbed. :3
@OnTheThrottleTV Okay, thanks a lot for the information :)
Does anyone have any knowledge of About how much mpg is affected, if at all.
ninja 250r.
No it won't fit the older model unfortunately.
Dave Moss
Host
anyone got a link to where i can buy one ?
that exhaust is so sexy :o
better with the insert in!
True
put a racing camshaft
why not just get a bigger CC and drive slower?
cus a nina 250 is faster than a hayabusa on small twisty roads, dont belive me? search for it.
there are a handfull of people in india who are into remapping and they dont know what they are doing.... so that will be a problem
@Vince62965 best value: tyga exhaust. look it up
Is it the song at 0:00 /watch?v=MPMP_7Rz9t4
2009
I honestly would have liked to hear the engine sounds change throughout the tuming process but i guess you prefer absolutely ruining a great video with copyright free elevator music. Re release this episode without the so called 'music'
Nope, more like enlightened with info. @mmmmmmmmmusic
Why would you even upgrade a ninja 250? LMAO
Is a fun bike to ride
250 reli sucks....my kawasaki zx150 easily can reach 195km........31hp!!!!