400EX Graydon Proline exhaust??
#3
I have this exhaust, dynojet kit, and k&n w/o air lid and the power gain quite a bit over stock. You can really tell the difference on the track with a stock bike. Although I like the power, I have not been impressed with the design of the pipe. Where the two pipes go into one my rattles and leaks. On their design the two pipes coming from the head slip into another piece and do not seal very well. I would reccommend going with a pipe that is "all one piece" where the two pipes go into one. That's my 2 cents anyway! Hope it helps.
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mrtidy
Polaris Ask an Expert! In fond memory of Old Polaris Tech.
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Feb 3, 2016 05:00 PM
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