I have the full moira exhaust on my R1, I cant say anything but good things about it, I dynoed the bike b4 and after I lost 3hp, but the sound of the exhaust completely makes up for it.........many times!!!! I couldnt be happier
You def lose the hp with that system.. I know its cheaper and is loud but loud isnt always good... I mean u can be putting around town and it sounds like your wide open at 7grand.... YOU WILL GET PULLED SOONER OR LATER>> TRUST ME I KNOW FROM EXPERINCE... I just put a graves cat-Eliminator that i got from tobefast.com (r1-fourm's store) for 1000$ and I got 10hp increase witht the pc3 usb.... its a whole new beast now
I Put The Boz Full System On My '07, And I'm Up About 4 Horsepower From Stock. I've Dyno'd The Bike 3 Times, And I'm Waiting For It To Warm Up So I Can Fine Tune My Machine (gotta Love Indiana). I Don't Know If Expect More Gain From The Bike, But We'll Do It Again To Make Sure.