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robert in NC
It's fmf so it's a great product! It does get much hotter than stock and the fmf factory fatty..not sure why although it does not not have as "twisted" and as large of an exhaust chamber as the pro-circuit and fmf factory fatty.. it some how performs just as well. Could be why it gets hotter..?.. the fitment is great on my 98 yz125 although on my 99yz125 (different part #, difference is the way it connect to cylinder) the kicker hit the pipe..that is 1 negative ..although not worth sending back. Also I wish I knew how to keep the fmf gold fatty series to keep from dulling.. maybe it's in the instructions..?.. It definitely increases hp. I would go with the fmf factory fatty if available for your bike..Read All Reviews
We carry a huge selection of exhaust systems for powersport machine. Find all of the performance exhaust systems you need for supercross, motocross, off road and street riding. Take a look at our exhaust systems from Lexx, FMF, Pro-Circuit and Yoshimura just to name a few. We also carry exhaust accessories for fine-tuning these systems to your riding style.