S&S Cycle
S&S Intake Manifold 55mm for M8
S&S Intake Manifold 55mm for M8
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The factory Milwaukee-Eight comes with a plastic intake manifold — and that’s a problem. While it keeps costs down, it also brings heat soak, warping issues, and long-term durability concerns. Plastic becomes brittle over time, especially in hot environments or under performance pressure.
If you're running a tuned engine, stage kits, or just riding hard, that plastic manifold becomes a serious bottleneck. It restricts airflow, limits throttle response, and can even cause vacuum leaks when it starts to deform.
Upgrading to a performance aluminum intake manifold means better airflow, cooler operation, and rock-solid reliability — not to mention a cleaner, more aggressive look. If you’re serious about performance, it’s one of the smartest upgrades you can make.
You have two options to pick from:
- 55mm CNC intake manifold (raw finish)
- 55mm CNC ported intake manifold for even better airflow(black coated)
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Why buy from Forty5°
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Verified compatibility
Every part we ship is checked against your bike's platform, year, and engine. If it doesn't fit, we tell you before you check out.
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Workshop installation
Book a serviceHave us fit it. Book installation at parts intake — same-day on most jobs, master techs only.
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Founder-led aftersales
Get in touchQuestions after fitment? You'll speak to the people who installed it. We answer email and WhatsApp seven days a week.