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Discussion Starter #1
hi everyone i have a 2002 honda 400ex and i was wondering what would be the best full exhaust system would be best for performance? any suggestions would be great. thanks
 

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Welcome to the forum...

Sparks makes a good one. HMF, FMF, and Yoshimura are 3 of the top mfg's.
 

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I'd get a a hmf full system.They probably make the best horse power out there.
 

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I don't know if I would say they are THE best beut definitely one of the best. I just switched from 2 Brothers M7 V.A.L.E. to the HMF 2010 Competition Series... I couldn't believe the difference in power.
 

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Well I did say "probably" make the best horsepower.
 

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Oh I agree with you, they are one of the top 3 for sure... There are so many variables when it comes to power gains. In my experience FMF produces killer bottom to mid range, HMF gives awesome gains from mid to top end.
 

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Yeah your right about the variables.
 
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