S&S Cycle 55mm Performance Manifold

For 2017+ Harley M8 Softail, Street Glide, Road Glide, Road King & Electra Glide Models WITH Big Bore Engines

Big bore engines are all about the flow, more air in and more air out, anything that slows that down, robs horsepower. The factory M8 intake manifold does a decent job in stock form, but starts getting in the way when trapped between 124" and larger cylinders. The stock polymer unit is also less tolerant of the additional heat that a big bore engine can make at full noise. The solution is the new S&S high flow cast aluminum manifold and a must have for top level performance in the M8 platform.

Features:

• This high-flow manifold adds 3–5 hp.
• Must have for big bore engines.
• CNC Machined.
• T6 heat treated cast aluminum.
• Replaces stock, plastic manifold.
• Includes new rubber seal.
• Easy to Install.

C.A.R.B. NOTE: For closed course competition use only. Not intended for street use. Legal in CA only for racing vehicles which may never be used, or registered or licensed for use, upon a highway. Not legal for sale or use nationwide on any federal pollution controlled motor vehicle under the clean air act.

Fitment:

• The following models WITH big bore engines:
• 2017+ Harley M8 Street Glide, Road Glide, Road King & Electra Glide
• 2018+ Harley M8 Softail