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2011-2014 Mustang V6 3.7 Roush Cold Air Intake Kit & Axle Back Muffler Exhaust

Manufacturer Part # 421145 , 421240

SKU RH4680
Sold out
Original price $1,129.98 - Original price $1,129.98
Original price
$1,129.98 - $1,129.98
Current price $1,129.98
Out of stock

Free Shipping on Orders Over $50

•Brand New in the Roush Performance Box.
•Upgrade your pony all in one shot and to top it off you get it in 2 working days!!!
•Roush Performance parts
•Cold Air Intake and Axle-Back Exhaust combo kit

About the Axle-Back Exhaust:

•Unique open-chambered design provides increased horsepower and torque by increasing airflow and reducing back pressure
•Distinct aggressive sound (sound clips available at
•409 stainless steel pipes and muffler
•304 stainless steel exhaust tips with chrome flashing helps prevent peeling
•Installation is quick and easy. Uses factory hanger locations. No vehicle modifications are required.
•Does not negatively affect emissions
•Fits both Ford factory and ROUSH rear valance
•No in-cockpit boom/drone
•3 Year Limited Warranty
•Fits manual and automatic
•Tip openings are oval-shaped, 4" x 4.5" (displayed below)

Installation is quick, easy, and uses all factory hanger locations and pierce points. No modifications to the vehicle are necessary. All the hangers are chromed for superior appearance and corrosion resistance. New, high quality OE-spherical clamps are included in the kit.

Kit includes:
(1) LH Muffler Assembly
(1) RH Muffler Assembly
(2) Round Chrome Flashed Exhaust Tips
(2) Inlet Pipe Spherical Clamps
(2) Exhaust Tip Clamps
(1) Installation Manual

About the Cold Air Intake:
•Improved throttle response
•Reusable air filter
•NO TUNE Required. Plug and Play installation
•Superior filtration properties
•Increased air flow
•Easy Installation (No cutting or drilling required)
•Features embossed ROUSH Logo
•Includes all necessary hardware and instructions
•Not approved for sale in California or states that require a California E.O. #.

Unleash latent power and fuel efficiency from your 3.7L V6 engine with the ROUSH® Mustang cold air intake kit. Cold air induction is a more efficient air intake method than the factory air filtering process. Consequently, unrealized power and fuel efficiency that would normally be restrained by the stock air intake unit is attained. ROUSH® cold air intakes feature three main improvements: upgraded air dam, high flow air filter media, and cold air induction tube.

The first step in the air induction process is the air dam. Upgraded air dams keep insulate out hot air from the engine compartment. The result is that the air entering the filter is cooler and dense, providing for a more potent air charge. The second step is the air filter media. ROUSH® carefully selects the media to provide upgraded air flow while still keeping out as much dirt from the engine as possible. Once the air has passed through the filter, it goes through the induction tube. Each of ROUSH®'s Mustang cold air intake kits feature induction tubes designed to provide upgraded air flow while continuing to insulate out hot air from the engine bay.

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