I know I have said on here and other boards how good FMF is, well my brother is sponsed by them, and its te only pipe i will use. But this x-mass I got a FMF siliencer for my KDX, and it didnt fit for crap...I had to heat and bend, and disregard some of there mounting hardware....At first the side pannel didt fit, the mounts were off. I was pissed. Espically after sendng them a resume forthe past 2 years and not getting any help, and still talking good about them, and the other thing i hung out with the FMF rep at the GNCC banquet. Any way, being a Industrial Engineering student and in my Sr. and having studied quality assurance, i think FMF needs some.