Title: yosh
Product review: I just installed this system on my 2003 kfx 400, the quad was stock except for the uni filter. After installing the exhaust and the Dynojet kit I noticed a decent power gain and I still have a little fine tuning to do. It also looks and sounds great! One thing that was a plus with this system is that the stock heat shield can be used with the header pipe. I previously owned the same exact quad i have now which had a White Bros e -series full exhaust on it and I burned my leg on the header when i was riding with shorts.The only problem i had with this system was I havent been able to get a torque wrench to one the bolts that mount up from the cylinder head to the header. Basically im satisfied with my purchase.
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