yoshimura rs2 full system vs fmf powercore 4 and powerbomb

what should i get for my yfz 450

DASA classic pipe. believe me. both he yoshi and fmf powercore are good for quads, but the dasa pipe is only made for certain quads. and when you have a quad that can fit the pipe, you want it. The DASA pipe is proven to add more power than the rest of the exhausts.

Out of those 2 selections I would go with the Fmf for a Yamaha. 


fmf is partners with Yamaha and makes a GYTR version of the 4.1 for the 450's

But I agree with Kimura above, the DASA is by far the best exhaust you can get your hands on, but the price also reflects this Lol


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