Rocket Performance Garage Llc M8 Performance Intake Manifold - 2017-2024 (exc.v… — Harley-Davidson (2017-2024)

Rocket Performance Garage M8 performance intake manifold for 2017-2024 Harley-Davidson Milwaukee-Eight engines. Cast aluminum with hand-ported high-flow design to eliminate OEM plastic manifold restrictions and increase airflow into the cylinder head, especially effective on 114 cubic inch and larger motors.

Features

• T6 heat-treated cast aluminum construction
• Hand-ported high-flow design
• CNC machined surfaces
• Outperforms competitor alternatives
• New rubber O-ring seal included
• Optimized for Rocket Cams and big-bore kits

Specifications

• Brand: Rocket Performance Garage Llc
• Manufacturer Part #: 9-9000HP
• Material: T6 heat-treated cast aluminum
• Length: 9 in
• Width: 5 in
• Height: 5 in
• Weight: 1.5 lbs

Fitment

Fits 2017-2024 Harley-Davidson Milwaukee-Eight (M8) engines. Particularly effective on 114 cubic inch and larger displacement motors.

Frequently Asked Questions

Will this work on a stock M8 engine?

Yes, but the performance gain is most noticeable when paired with a Rocket Cam or big-bore kit on 114 cubic inch and larger motors.

How much horsepower will I gain?

Horsepower gains depend on your complete setup. The hand-ported design eliminates OEM manifold airflow restrictions and pairs well with Rocket performance upgrades.

Does this require any modifications to install?

Direct replacement for the OEM M8 plastic intake manifold. New rubber O-ring included.

Why is the OEM plastic manifold a problem?

The OEM design restricts airflow into the cylinder head port opening, which limits performance especially on larger-displacement motors.