Rocket Performance Garage M8 Hand-Ported Performance Intake Manifold - Harley Milwaukee-Eight
About Rocket Performance Garage Llc
Rocket Performance Garage builds V-twin performance and custom parts, working in the modern bagger and Softail space.
To truly uncork the power potential of your Milwaukee-Eight engine, you need to eliminate every restriction in the intake path. The Rocket Performance Garage M8 Performance Intake Manifold is engineered to do just that, replacing the restrictive OEM plastic manifold with a high-flow, hand-ported design.
Why riders pick this
- Hand-ported, high-flow design for increased airflow
- T6 heat-treated cast aluminum construction
- Eliminates restrictive OEM plastic manifold
- CNC machined surfaces for precise fitment
- Optimized for 114 cubic inch and larger M8 engines
The Rocket Performance Garage M8 Performance Intake Manifold is a serious upgrade for 2017-up Harley-Davidson Milwaukee-Eight engines. Crafted from T6 heat-treated cast aluminum, this manifold features a meticulously hand-ported, high-flow design that significantly increases airflow into the cylinder heads. Unlike the stock plastic manifold, the Rocket Performance Garage manifold is built to eliminate restrictions, making it particularly effective on 114 cubic inch and larger M8 motors. Each manifold features CNC machined surfaces for a precise fit and includes a new rubber O-ring seal for optimal sealing.
Unleash Your Milwaukee-Eight's Potential
- T6 heat-treated cast aluminum construction for durability
- Hand-ported, high-flow design eliminates OEM restrictions
- CNC machined surfaces ensure a perfect seal
- Optimized for Rocket Cams and big-bore kits
- Includes a new rubber O-ring seal for installation
Engineered for Performance
This performance intake manifold is designed to work in harmony with other high-performance upgrades, especially Rocket Cams and big-bore kits. By improving the volumetric efficiency of your Milwaukee-Eight engine, you'll experience noticeable gains in usable torque and horsepower. If you're building a performance bagger or simply seeking to maximize your M8's output, this intake manifold is a fundamental component for achieving your power goals. It's a direct replacement that delivers real-world results you can feel on the street.
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
Common questions
Will this work on a stock M8 engine?
Yes, it will work on a stock M8 engine, but the performance gain is most noticeable and effective when paired with a Rocket Cam or big-bore kit, particularly on 114 cubic inch and larger displacement motors.
Does this require a dyno tune?
Any significant change to your engine's intake or exhaust system, especially a performance manifold, will require a proper dyno tune to ensure optimal performance, fuel efficiency, and engine longevity.
What Harley-Davidson models does this intake manifold fit?
This performance intake manifold is designed for 2017-up Harley-Davidson Milwaukee-Eight (M8) engines across Touring and Softail platforms.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Rocket Performance Garage Llc |
| TYPE | Intake/Carb/Fuel System |
| SKU | 276-02078 |
| WEIGHT | 1.5 lb |
