22/05/2026
We fitted one of our S&S475 cam kits and tuned this M8 117 a few weeks ago. It was running a Screamin Eagle Ventilator air filter which was holding it back so we upgraded it to a Screamin Eagle Ventilator Extreme🔥
With the new combo of: 117 M8, S&S 475 cam, Vance & Hines Big Radius and now the SE Ventilator Extreme we were able to produce 112.6hp and 141.ftlb 👌🏻 That’s an extra 27.6hp and 33.4 ftlb of torque over stock! Now as impressive as those numbers are it’s the overall gain that is what’s most impressive! Torque you can see an increase of around 30ftlb from as lower as 2,000rpm and it continues nearly all the way through the curve which wow can you feel! And hp is a nice gradual increase from 15hp and keeps going up until 4,000rpm where the remainder of the rpm is averaging a 30hp gain over stock! This is why the S&S 475 is the most common go to cam on the market 😎
Note: Vance & Hines brings the noise tho if you were chasing HP a 2into1 exhaust you can see up to 120hp!
If you have a Harley Davidson and looking at getting any type of work done:
🚶Come in and see us at 22/24 Bridge Road Griffith
📞 Call on 0431 329 460
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💻 Email at: [email protected]
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