YFZ450R FMF 4.1 with Mega Bomb header
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YFZ450R FMF 4.1 with Mega Bomb header
Well I decided to go different on the exhaust with my R. Haven't seen anyone yet run the FMF 4.1 with the mega bomb header. I got everything in today put it on fits pretty good only issue the header bend is pretty close to the lower rad hose. Hopeing to get it dyno tuned this week see what the gain is since the last tune with the factory exhaust.
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