…extra size bumps the mill to 256cc, and feeding the entire thing is a full-modified race carb from Tokyo Mods while an FMF MegaBomb and Factory 4.1 single muffler handle exhaust on the opposite end. When it comes to building motors, plenty of guys live by the ?go big or go home? mantra ? and plenty…

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…stock XC provides, but other than a SX-style ignition curve, the 450cc engine is relatively stock.Clutch - Stock.Carb - Stock 2006 450SX 41mm.Exhaust - FMF.Air Filter - Twin Air.Suspension - WP works suspension, 52mm forks.Fuel Tank - IMS, wrapped with heat tape. "Normally we can do a race on two fuel…

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…good with testing and things like that. He is pretty good at maintaining his own bike in Georgia." FMF's Megabomb and Factory 4.1 carbon fiber exhaust by FMF is specially tuned to meet KTM's needs as well as the strict AMA sound regulations.Burgess explained the way engines are managed at KTM and the…

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The FMF Powerline full-system exhaust gave our Outlaw a boost on the top end and an even bigger aesthetic shot in the arm.The Score?Our Polaris Outlaw 525 IRS test quad is one impressive ATV, but like any stock bike, there're plenty of things we'd like to do to it for performance and increased bling…

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…Carbon/Titanium ExhaustGive your opinion on the Leo Vince X3 Exhaust with a little Forum action.Photo Gallery Recent Dirt Bike Product ReviewsRelated Motorcycle Product Reivews 2006 CRF250R Project Bike FMF SST Exhaust Review DRD SA Exhaust Review

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…anything about them, then you know who FMF is. As the largest off-road exhaust manufacturer in the world, it?s nearly impossible not to. But in the street world they are the new kid on the block. I bet some of you may not even know they are making street bike exhausts. But if you haven?t yet, you will real…

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…is at a premium and always felt readily available. Bridgestone tires and foam inserts worked fine on the Florida course.A set of YZ250F cams, FMF 4.1 exhaust, carb settings and airbox mods wake the motor up enough to make lifting the front end in sand much easier than on a stock bike.We were pleased…

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…corner. FMF has a private stash of dual exhaust pipes that the off-road factory guys are using and are reported to spread out the power band. Besides, they look cool and sound great. I'd have to modify the airbox on the 450 in order to accommodate the FMF system, which is why these exhaust pipes are…

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The FMF Powerline full-system exhaust is an example of FMF's dedication to lowering noise while?increasing performance.The world's leading aftermarket performance motorcycle exhaust manufacturer is announcing its continuing commitment to the sport through rider education and new product development.…

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…bike is to yard their stock pipe or silencer in lieu of something that will generate more power and put out a healthier exhaust note.That's the theory, at least. We ordered up an FMF SST Titanium pipe and silencer to put it to the test. MCUSA's own 4-Stroke Nationals rider, Devin Watson, would supply…

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