FMF Factory 4.1 RCT Complete Exhaust With Titanium Megabomb Header - Dual
FMF Factory 4.1 RCT Complete Exhaust With Titanium Megabomb Header - Dual

$1124.99 - $1169.99
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Description See Also: 1 Review 3 Questions Fitment
Item #FMF000V

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Top 500 Contributor Verified Purchaser
Littleton, NH 03561, USA
2017 CRF450R FMF Full Ti

This was well worth the wait! Bolted right up with zero fitment issues. The fit and Finnish is second to none like the customer service from the team at motosport.com

FMF Factory 4.1 RCT Complete Exhaust With Titanium Megabomb Header - Dual
3 Questions
Answered:   3
Not Yet:   0
Q: Are the mid pipes for the 2015 crf250 and 2015 crf450 the same diameter on the input side?
2 days 12 hours ago
Location: England, UK
Q: Will a 2015 crf header fit a crf 2013 450r?
Over 3 years ago
MotoSport Staff Expert
Over 3 years ago
A: No, the exhaust on the 2015 CRF450R is different from the 2013 CRF450R.
Q: Can i fit this in my bike?
Over 3 years ago
So i was wondering if i can make my Yz-85 04 a dual exaust bike. I dont mean with this product but i really want it to be dual and i only need the conector from the pipe to the exaust. Can i buy it alone? And now i have a FMF powercore 2 shorty, will i need the same silencer? I know my question sounds crazy but just asking.
Expert MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: To my knowledge there is no dual exhaust system or dual connecting pipe that would be made for your Yamaha YZ85. The Dual Mid-Pipe or "Y-Pipe" for this FMF Exhaust would be far to large in diameter to adapt to your bike. It would likely be something you would have to have custom fabricated.
Location: Turin, NY 13473, USA
Q: Is there an advantage to having the dual or is the single exaust made by fmf create just as much power?
Over 4 years ago
MotoSport Staff Expert
Over 4 years ago Location: Portland, OR, USA
A: I contacted FMF directly for you and this is what they said:

"The dual parts are great on performance but the single exhaust are almost always better on performance. On this and past systems it is true that the single will produce better performance all around over the duals. The duals will be a little quieter due to the exhaust being split into two mufflers but the single will still meet sound for AMA." -Bryce, FMF Racing
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