Engine Mechanical Topics Discussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.

131 upgrade

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Old Nov 26, 2025 | 06:31 PM
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Default 131 upgrade

The kits have been out for a while now. Looking for reviews.

Thank you.
 
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Old Nov 26, 2025 | 07:33 PM
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Originally Posted by Bemo56
The kits have been out for a while now. Looking for reviews.

Thank you.
A good friend has a 131 in his 2017 CVO Street Glide. I had just merged onto a 65mph bypass and he came from behind and blew past me. Told me the next time I saw him he was doing 110mph, and he had just merged onto the expressway. It sounded dang good too.

He’s got 55,000 miles on the bike. Most of it with the 131.
 

Last edited by gonemad; Nov 26, 2025 at 07:35 PM.
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Old Nov 28, 2025 | 07:53 AM
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The compression and displacement are great, thr heads and cams, not so much. Better luck putting something together on you're own, with the right advise.
m
 
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