DESCRIPTION DESCRIPTION: The AFS Ported 2021 Mustang GT Intake Manifold is the latest available, offering the same great results from the 2018+ design, with a black top sleeper option. This modification for the 2015-23 Coyote engine adds power across the power band. Mustang GT non-ported versus Ported Intake Manifold Runner Outlet:AFS cuts and reshape the inlet and runners, removing excess glue in the seams and any obstructions to increase overall airflow and balance between cylinders. Porting adds an additional 8-12hp and 7-9ft lbs of torque at points throughout the power band. JR3Z-9424-B (Black 2021) replaces JR3Z-9424-A (Grey released 2018) Lead Time:These are ported to order and lead time is 4-5 weeks currently. FEATURES FEATURES: Brand new. Ported by Brett Barber (Air Flow Solutions). Porting adds 8-12hp and 7-9ft lbs of torque at points throughout the power band. Option: MAP Sensor hole is drilled and tapped for 2015-2023 vehicles. Special packaging to protect during shipping. Tuning is required, and if you are already an Oz customer, the tune update is included (a $50 value). REQUIREMENTS NOTES & REQUIREMENTS: Professional installation is recommended. No instructions are provided. 2015-2017 trucks - IMRC's need to be locked out or you can use VMP IMRC harness kit to keep IMRC's active. (We recommend keeping IMRC's active on 2015-2020 trucks, as it helps with smooth idle, part throttle torque, and can help retain mpg's) 2018-2020 trucks - Just keep the IMRC's active and no special harnesses needed for that. 2021-2023 trucks - Adapter kit required and IMRC's must be locked out. If you buy our SP Machining adapter kit, lockouts are included with that kit.
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