KTM 500EXC Performance Upgrade Review — FMF 4.1 RCT, JD Jetting Tuner, Reed Delete/Euro Boot
FMF 4.1 RCT Slip-On, JD Jetting Power Surge Tuner, Euro Air Boot
How much better is this 2017 KTM 500 EXC-f after adding the FMF 4.1 RCT pipe, JD Jetting Power Surge Fueling Tuner, and Euro Intake Boot (intake reed delete) mods? —— SO MUCH BETTER!
Here are the 5 things that drastically improved with these performance modifications:
We talk about each one of these gains from these three (well 4, emissions too) modifications. Overall this can be done for under $800 and makes for a much better bike. Many of the tuners out there also have a cheaper version of this that just uses an end cap for the stock pipe versus going for the FMF Pipe and makes this modification under $600. Blais Racing calls it the Budget Performance Conversion.
We highly recommend doing these mods to your KTM 500EXC/Husky FE501, but just make sure your riding style/primary terrain means you should remove the intake reeds. If you like doing slow/hard enduro riding, you might be better leaving the reeds in to keep bottom end grunt.
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