Steeda HARDCORE MaxFlow Closed Cold Air Intake | Mustang
YOUR BUILD STARTS HERE Expert Installs Thousand Oaks, CA
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Authorized Dealer • Expert Installation • Thousand Oaks, CA
Discount Code: FFPERFORMANCE
805-267-9762
FFP · AUTHORIZED DEALER The leader in Ford performance · Over 35 years · MAP pricing SHOP ALL STEEDA →
AUTHORIZED DEALER
Part #555-3966

2018-2023 Ford Mustang Bullitt/GT – Steeda HARDCORE MaxFlow Closed Cold Air Intake Power Pack - X4

Fits These Vehicles 2018-2023 Ford Mustang Bullitt/GT
Price $1,179.95
  • Engineered and manufactured in Valdosta, Georgia
  • CNC-machined billet construction where applicable
  • Tested on Steeda's SCCA Majors race program
  • Steeda authorized dealer — exact MAP pricing

Limited Lifetime Warranty

Backed by Steeda — FFP is an authorized Steeda dealer and warranty claims are honored direct.

— Function Factory Performance

Authorized Steeda Autosports dealer. MAP pricing — the same price as steeda.com. Expert install available at our Thousand Oaks, CA shop. Questions on fitment or setup? Chat with Senna or call our specialists.

Overview

The full breakdown.

Install
Easy
Time
1 Hour
Warranty
Limited Lifetime

Overview

Steeda Autosports, the world’s largest aftermarket manufacturer of Ford performance equipment is once again leading the performance market with our Steeda S550 Mustang MaxFlow Closed Cold Air Intake 5.0L Power Pack (18-20 GT) and flash custom tuning device package.

This intake/tuning package combines our Steeda S550 Mustang MaxFlow Closed Cold Air Intake with a SCT X4tuning device for the ultimate easy to install power upgrade.

Horsepower per dollar, Steeda’s S550 Mustang GT MaxFlow Closed Cold Air Intake is the best choice for stock intake manifold 2015+ Coyote powered Mustangs. Steeda MaxFlow Mustang Cold Air Intake for your S550 opens up the induction system of Ford’s 5.0 powerplant and allows it to breathe much more freely than the stock intake system allows, taking your S550 Mustang GT to the highest level of performance. The system comes with an oiled reusable high flow panel filter and a high flow dry filter is available separately.

Product Gallery

Key Benefits

Your Custom Steeda Tune will be emailed to you in approximately 7 days. Download the tune onto the device, flash your vehicle and enjoy the new performance.
CAD designed air box lid and tube [sealed]
Largest mass air meter on the market (121mm) for most airflow possible
Coolest intake air temperatures (IATs) on the market for consistent performance
25HP increase more then stock
30HP increase over stock at mid-range [max gains]
Fits all 2015+ S550 Mustang GTs, including 2018 and newer
Includes our washable Steeda S550 Mustang Oiled Air Filter ( #555-3221)
Quick and easy install
***TUNE REQUIRED***
Retains all factory vacuum lines with optional sound tube delete
Utilizes the factory grille duct

Specifications

Installation Difficulty
Easy
Estimated Install Time
(approx.) 1 Hour
Tools Required
Basic Shop Tools

Fitment

2018-2023 Ford Mustang Bullitt/GT.

California emissions notice: This part is intended for off-road / competition use and is not approved for sale or use on pollution-controlled vehicles in California or states that follow CARB emissions law.
Why Steeda
The leader in Ford performance.

Steeda has been engineering and manufacturing Ford performance parts in-house in Valdosta, Georgia for over 35 years — proven on their own SCCA Majors race team and trusted by enthusiasts who live and breathe Ford. CNC-machined billet construction, proprietary CAD-driven suspension geometry, and a relentless focus on the platforms they specialize in.

QS-9000 & ISO 9001 manufacturing · Limited lifetime warranty on Steeda-manufactured parts · Made in the USA

First-hand note

FFP fits Steeda parts every week in Thousand Oaks.

— Why we stock Steeda

OE-style engineering, in-house manufacturing, race-proven on Steeda's own SCCA program.

Steeda has been engineering Mustang — and now Explorer, Focus, F-150, and Maverick — parts in Valdosta, Georgia since 1988. CNC-machined billet, proprietary CAD-driven suspension geometry, and a factory SCCA Majors road-racing team that runs their own parts on the track every weekend. When you bolt a Steeda part onto your car, it's the same part Steeda's own race cars run.

We carry Steeda because the fitment is right the first time, the warranty is real (lifetime on Steeda-manufactured parts), and the install instructions don't leave you guessing. Drop the car at our Thousand Oaks shop and our techs handle the fit-up — or order with confidence and run it yourself.

Authority: Charles Siritho · McLaren Artura Trophy owner · Spotter for Branden Sorensen FD Pro (E46 LS+Whipple, 6th at Long Beach R1 2026) · 10+ yrs Mustang & Corvette specialist

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— FFP is an Authorized Steeda Dealer

Shop the full Steeda catalog at FFP.

The leader in Ford performance — suspension, intakes, exhaust, brakes, wheels, and more — for Mustang, Bronco, Bronco Sport, Explorer, F-150, and Maverick. Enthusiast-driven, race-tested. MAP pricing always. Expert installation in Thousand Oaks, CA.

BROWSE ALL STEEDA →
Price$1,179.95
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OVER 35 YEARS IN FORD PERFORMANCE. RACING EVEN LONGER.
— Steeda Autosports · sold & installed by FFP
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