Installing a FMF 4.1 Factory Slip-On | Dennis Kirk Tech Tip
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- Опубликовано: 20 июл 2022
- Presented by Dennis Kirk
Welcome to this installment of our latest feature, the Dennis Kirk Tech Tip. In this episode, Donn Maeda walks through the installation of a FMF 4.1 Factory Slip-On, while highlighting some tips to make your life a little easier through the process. Press play and check out these tips before switching out your muffler! Drop a comment below and tell us what you want us to cover next!
Get your FMF 4.1 here: www.denniskirk.com/ 
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Swap, do more videos like this. I've been riding my entire life, changed many exhaust systems, and don't own this particular bike, but I still watched the entire thing and enjoyed it. Great content!
Just put this on my 22 SX-F 450 today and OMG this thing sounds AMAZING!!!! So LOUD!!!
I bought the full system and its amazing how quiet it is
great video!
Still looking for a 23 350 and the 4.1 to go with it.
I bought a power core 4 hex muffler for my 2021 350 xcfw do I need a tuner if I am only installing the slip on ?
I actually lost the spark arrestor on mine it blew right out on this exhaust and bike. Im actually going to put a new one in. To me the bike actually does not feel as good. The down low 450 feel it had no longer is there. Not really sure I can notice the gain at the top end of the rev it’s just louder. Would be interesting to see this on a Dyno with and with out the spark arrestor.
Whats the part number for the slip on is it the same as a 2022 or did it change because of the new frame?
How does the FMF unit with and without the spark arrest or compare to the stock muffler from a loudness perspective? I think the stock muffler seems loud and I am going for as quiet as possible. Thanks.
I installed this on my 2023 crf450r. With the RTS do you need to rejet? On deacceleration, is it normal for backfire and pops when the spark arrestor is removed ?? Would love the feedback ! Thank you!
Your bike has fuel injection so there is no jetting
@@colbymullaney9908 could it be running lean from the slip on?
@Brady Arnott a slip on shouldn't make enough difference that you have to get a ecu tune but if you got it tuned it would maximize power gains
I recently bought fmf 4.1 exhaust and I can’t get the spark arrestor out it doesn’t come out as easy as in the vid I tried pulling it out but just won’t come out and tips?
Did you ever figure this out @riskyyz
what part # is the exhaust?
Yeah it would be nice to be able to find an exhaust I’ve been trying to find one for months with no luck looks like I’m gonna have to get it through the ktm dealer
I didn’t find it where can i find a fmf exhaust for ktm 450 sx-f 2023 ?
same, ive emailed fmf and they said they are exclusive to ktm and other brand dealers only atm, but yet ive messaged loads of ktm dealers and they have none for the 2023 models
@@jamprd I put my KTM 2023 SX-F 350 into Dennis Kirk, Motosport to search and both say NO FMF exhausts fit the bike! No Akrapovic fit either. Not understanding this. I even went to Rocky Mountain Atv and it says only Pro Circuit fits the 2023 SX-F 350. WTF?
@@brutus6328 there is Akrapovic systems available for the 2023 models
I went to Dennis Kirk and put in my 2023 SX-F 350 and it says no pipes fit,......none! Also says no pipes fit at Motosport and Rocky Mountain ATV. The only pipe they all say fit the 2023 SX-F 350 is the pro circuit T6. WTF? Can anyone explain why this is?
Brand new, most likely not available yet, still in proto stage. Had the same problem when I bought my new bike in January
Who did the graphics?
Ktm…
@@Black-ru2tm those aren't stock graphics
Now do a "How to on a Yamaha yz" .. Oh yeah, you can't find one.. Nevermind 😜
I wanted to repack my 4.1 on my XCF but is literally impossible to get the slip on off from the header. I cheated it up I've pounded on it with a mallet nothing will make that thing even budge a millimeter. I laughed out loud when I saw this one just slip right off.
Mine was rtv glued by previous owner Im removing both sides and then installing one at a time.Skip the damn glue
799$ I think I would keep the stock.. sorry the Biden economy won’t allow for any extras
But thanks to Bidinflation you might be able to sell it used for $1200 next year..🤪
Destroyed the mic! cant even hear it.. poor edit try again