ATVConnection.com ATV Enthusiast Community - hmf vs bill's vs pro-t-4? on RAPTOR

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WreckRaptor660R

May 15, 2002 09:14 PM

what slip on has most hp. increase? HMF Bills or t-4?
I don't care about sound. This is for slip-ons.
power i am looking for is mid-top end.
also, looks, and fit are considered. thanks

ANUFSED

May 15, 2002 10:04 PM

It depends on what other mods you have done to your bike. A pipe really isnt going to do much without a jet kit or filter. As we see more and more here to quote someone "More ain in, More air out". Do a search.

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