ATV Connection Magazine

hmf

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Posted by: CdaleRacer

Check out RSperformance.net. You can download a few exhaust sounds there. I havnt heard one in person yet, but from hearing them off the site they seem cool. Not to loud but a little different than the stock FMF. I talked to RS performance yesterday and they told me that they were seeing I think 40hp with the slip-on HMF and EFI remaping. I think he said 40 but it may have been alittle more.

Posted by: red99400ex

how do their pipes sound?
how loud?
power gains?