The All things HARLEY M8 Stage IV Kit THREAD
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The All things HARLEY M8 Stage IV Kit THREAD
I figured I'd make a 131 thread to combine all of our experiences. I was looking for some advice and noticed we are all over the place. I just did mine. The local dealer was having a 131 kit sale, 31% off. I have a '20 114 with 12500 on it and did the kit. I already had the SE air cleaner, a SE tuner and a set of Fuel Moto Hi Rollers. Picked it up Saturday night and have 315 miles on it. No complaints, haven't cranked it up much past 3K. Feels strong. Share your experiences.
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The following 3 users liked this post by mstrobes:
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I figured I'd make a 131 thread to combine all of our experiences. I was looking for some advice and noticed we are all over the place. I just did mine. The local dealer was having a 131 kit sale, 31% off. I have a '20 114 with 12500 on it and did the kit. I already had the SE air cleaner, a SE tuner and a set of Fuel Moto Hi Rollers. Picked it up Saturday night and have 315 miles on it. No complaints, haven't cranked it up much past 3K. Feels strong. Share your experiences.
The following 2 users liked this post by cvosjoe:
FLSTFI Dave (03-03-2021),
wjcbsr (03-02-2021)
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2020 RGS with the Stage IV 131 kit. I used the complete kit and added Street Cannons and Ventilator Extreme. It was tuned with the HD Street tuner (took several tunes to get it right). 16k miles on it so far with no issues. Some have complained about low end drivability. Mine has great throttle response and power down low, as well as mid range and top end.
The following users liked this post:
cvosjoe (03-02-2021)
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That's good news, maybe due to tighter piston clearances.
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