FMF always makes the best quality pipes in my opinion. I got this pipe a couple of years back for a yz250 and it runs great. With much stronger metal than the stock pipe. Always have bought from motosport, always will.
FMF Fatty Pipe:
With well over 35 years of racing experience behind it, the Fatty pipe delivers race-proven performance. The Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-rev. No matter what type of riding you do, the Fatty has the benefits you're looking for.
Note: Pipe may include factory indentations for proper installation clearance.
FMF Powercore 2 Silencer: