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Rocket Performance Garage High Flow Intake Manifold

Item: 417627

Fits: 2021 Harley Davidson FLRT Freewheeler

$187.41 – $298.18

Rocket Performance Garage High Flow Intake Manifold


The Rocket Cams/Rocket Performance Garage High Flow manifold is a must have for top level performance in the M8 platform especially when adding a Rocket Cam or Big Bore Kit.

  • Available in two styles, cast aluminum is a standard OEM replacement, while the hand ported version adds 6-8 hp over stock unit
  • The OEM plastic M8 intake manifold restricts airflow into the port opening of the head and has severe negative effects on 114" and larger motors
  • Outperforms competitor's similar product
  • Highest value in horsepower gain per dollar spent
  • T6 heat treated cast aluminum with CNC Machined surfaces
  • Includes new rubber O-Ring
Specification Details
Diameter 55mm
Engine Type Milwaukee Eight
Material Varies (make selection above)

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • FLHR Road King 2017-2022
  • FLHRXS Road King Special 2017-2024
  • FLHT Electra Glide Standard 2019-2022
  • FLHTCU Electra Glide Ultra Classic 2017-2019
  • FLHTCUTG Tri Glide Ultra Classic 2018-2024
  • FLHTK Electra Glide Ultra Limited 2017-2024
  • FLHTKL Electra Glide Ultra Limited Low 2017-2019
  • FLHX Street Glide 2017-2023
  • FLHXS Street Glide Special 2017-2023
  • FLHXST Street Glide ST 2022-2023
  • FLRT Freewheeler 2017-2024
  • FLTRK Road Glide Limited 2020-2024
  • FLTRT Road Glide 3 2023-2024
  • FLTRU Road Glide Ultra 2017-2019
  • FLTRX Road Glide 2017-2023
  • FLTRXS Road Glide Special 2017-2023
  • FLTRXST Road Glide ST 2022-2023

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