What does anybody think about this pipe. I'm looking for more power with little niose increase. For my 400ex. Pros/Cons-Thanks.

 

I have a Q2 exhaust on my YFZ 450. It makes good power, has superb build quality, and has a spark arrestor that we needed for desert racing. On the YFZ it is quite a bit louder than stock, but no where near the stupid loud noise level of an HMF exhaust we had on our prior YFZ, or the HMF exhaust we had on a DS 650. I say stupid loud because the DS 650 was sound checked at 136 dB at wide open throttle, and anything over 115 dB starts to cause hearing loss. You gotta be stupid to ride something that loud. The FMF Q2 is a good choice, you'll be happy with it.

 

My buddy has one on his 450R, along with a PowerBomb header. The power is AWESOME! It wants to rip the bars out of your hands, ala the Banshee. But, it is way louder than I would have expected for a muffler that is supposed to be quiet.

 

thank you both-this helps a lot-O