Whats the best kind of exhaust for a sport quad in performance, but under 110db, there are probably no pipeslouader than that though

 

in my opinion a fat boy 4 sounds the best and has good performance.

 

I would prob have to say sparks,dasa,trinity,hmf,and lte depending on the quad that you have

 

Any of the new quiet pipes! Well, except for FMF...

 

i am happy with my Duncan pipe

 

Ive got the z400, i have the Rossier enginerring Full exhaust, The test show it right up there with yoshi. ...its loud, its about 105 to 107,,,and it is short,unlike alot odf the other pipes that come out clear to the back of the fender...this one hides it self...i almost got the HMF, but once i got this one, im glad, u can get the full exhaust, and the jets for 420, i Bielive,,,i Hope this helps ya, good luck, and let us know what u come out with**..