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FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap

$ 606.98 - $ 809.98
10% Off - Save up to $68.00

Item #FMF00F1

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5 Reviews
4.8 out of 5 stars
5 Star   4 4 Star   1 3 Star   0 2 Star   0 1 Star   0
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All Reviews
Verified Purchaser Top 50
Michigan
Stronger, broader power with more overvev

The header and silencer fit a 2016 CRF250R well. Do not use the stock spacer for the mid mounting location, or the rear spring will rub on the silencer. The combo produced a noticeable power increase. We sent the ECU out to Tokyo Mods for a new map.

Verified Purchaser
More power

This pipe helps new motor for my 2013 KX 450 F work so much better than the stock pipe. A lot more low-end and mid range. I'm loving it

Yuma, AZ, USA
AMAZING!!

I bought mine a few years back and It's outstanding! It makes my 2012 CRF250R sound like a 450. Best investment I've ever made! And it also gives the bike more power i believe.

Verified Purchaser
Awesome purchcase

well worth the money, shipped fast and the installization was pretty easy. improved the sound quality and i feel like its given my bike an increase in overall cleaner power

Verified Purchaser
Pennsylvania, USA
Great Pipe and great price

After installing the exhaust my bike sounds awesome and it gave it more power all the way through the gears. Im loving this thing. And did I mention it looks factory with carbon end cap?

6 Questions
Answered:   6
Not Yet:   0
Airborne
Q: Will this fit a 2011 KTM 350sxf
4 months 16 days ago
Thumbs
Top 10
4 months 16 days ago
A: At this time FMF does not have any fitment for your 2011 KTM 350 SXF for this exhaust.
Ryan bullock
Q: How many DB louder is this system then the Yoshimura rs4 on a RMZ 250? And is it noticeable? No muffler insert. Thanks!
4 months 26 days ago
Michael
Top 10
4 months 26 days ago
A: Actually this system is made to reduce the DB level from the gate, vs the increase in DB that most exhausts put out with the HP increase gains. So I would say, no spark arrestor, no insert, this system will be quieter than that of it's competitors.
Brandon
Q: Will the exhaust for a 2016 rmz250 fit a 2014 rmz250?
1 year 11 months ago
Motodad
1 year 11 months ago
A: Yes, the 2014 and 2016 RMZ250 part numbers are exactly the same.
Toxicgladiator1
Q: Can I put single exhaust on a dual exhaust 2015 crf250r? And if so would it be worth it?
2 years 9 months ago
MotoSportExpert
Expert MotoSport Staff
2 years 9 months ago
A: Yes this FMF Aluminum Factory 4.1 Slip-On RCT With Megabomb Header And Carbon Fiber End Cap would fit your 2015 Honda CRF250R. Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct exhaust for your bike. There would be an increase in power and a decrease in weight over stock with this exhaust. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Motodad
2 years 9 months ago
A: Absolutely you can go to a single exhaust. We just did that on my son's CRF250. The bike pulls harder on the bottom and now has the over rev it lacked with the stock exhaust. We sent the ECU to Tokyo mods for revised mapping and are very pleased with the whole setup. As for being worth it.. yeah it's definitely worth it!
Brandon
Q: Would i need anything else with this pipe to make it run right?
Over 3 years ago
is it like a carb bike where you have to re jet it?
Motodad
Over 3 years ago
A: Your bike will be pumping more air with this exhaust setup and will perform better with revised mapping. We just purchased the 4.1 FMF exhaust you're interested in and sent our ECU to Tokyo mods to have new mapping programmed to it. The bike runs strong, and responded well to the new exhaust and maps.
MotoSportExpert
Top 1 Contributor
Over 3 years ago
A: It is always recommended to get a new cylinder gasket with any exhaust. You can purchase this separately in the OEM parts.

Normally when installing a slip-on only minor changes to the air/fuel ratio are needed, if any at all. If your bike is currently running properly, likely you will not have to make any changes after installing this slip-on. I would recommend installing the exhaust and riding the machine to see how it is running then decide if you need an purchase an aftermarket EFI tuner .
mtb4life
Q: Spark arrestor and quiet core
Over 4 years ago
Hi, Does this system come with a spark arrestor and quiet core insert?
MotoSportRyanT
MotoSport Staff Expert
Over 4 years ago
A: I contacted FMF to see which exact insert comes with this system, this is what I found out:

"This comes with is a quiet core spark arrestor insert, it is one insert. If you would like just a spark arrestor and not the quiet S/A you can order it separately." -Bryce, FMF Racing

I don't currently list the separate inserts on our website but it can be ordered directly through FMF here:
http://www.fmfracing.com/Products/Accessories/594

The FMF part number for the Non-Quiet Core Spark Arrestor Insert that is not included with the Exhaust system is #040638
Fitment

See all bikes that this part fits...

See Fitments
# Part Numbers
Exhaust
Product Variant Manufacturer Part #
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap and Side Panel 041525
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 045558
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 042330
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 044383
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 041507
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 044382
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 044427
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 043347
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 043320
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 042292
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 043319
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 042290
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 042291
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 041473
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap 041474
Header
Product Variant Manufacturer Part #
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 042338
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 041538
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 041519
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 045498
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 044354
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 044421
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 041459
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 043340
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 042276
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 043286
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 042250
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 042249
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 041491
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 45362
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 45363
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 041539
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 041428
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 043310
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 042339
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 043238
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 041520
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 042181
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 043341
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 041376
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 042277
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 044422
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 041492
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 043309
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 044332
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 044352
FMF Aluminum Factory 4.1 Slip-On RCT Megabomb And CF End Cap 044316
California Proposition 65

WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. For more information, go to www.P65Warnings.ca.gov.