Free Shipping On Orders Over $49. Details

Talk to a Mustang Expert
Every day 8:30AM EST - 11:00PM EST
Win Any Wheel & Tire Package! Enter Daily

Kooks 3 in. Off-Road H-Pipe (11-14 GT w/ Long Tube Headers)

Market Price $629.99 You Save 12% ($72.82)
Our Price

$557.17 (kit)

FREE Shipping

  • Item 398872
  • MPN# 11413400

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • Aggressive, Deep Exhaust Note
    • Accelerated Exhaust Flow for an Enhanced Performance, Power and Torque
    • Dual-Outlet Straight Through Round Mufflers for No-Droning
    • Made of T304 Aerospace-Grade Stainless Steel for Maximum Strength
    • High-Performance Chrome Finish for Ultimate Protection Against Rust
    • Must be Used with Kooks LTHs to Provide Optimal Performance
    • CARB Non-Compliant
    • Direct Fit Replacement Custom Upgrade
    • Limited Lifetime Warranty
    • Fits All 2011 – 2014 Ford Mustang GT Models with Long Tube Headers
    Aggressive Mustang Exhaust Note. Transform your docile, restrictive stock factory exhaust system by mounting the Kooks 3" Off-Road H-Pipe. The pipe's design is 49-State EPA certified and deliver high performers while letting out an aggressive, but crisp exhaust sound that a GT must have.

    Enhanced Horsepower and Performance. This H-pipe by Kooks is not only effective in eliminating the obnoxious droning sound, but also provides increased horsepower and performance. It is designed with a dual- outlet tubes w/ round mufflers, that breathes an adrenaline-rush horsepower. Its 3" diameter improves exhausted flow to boost the throttle further.

    Superiorly Constructed. Kooks high-performance H-pipe utilizes T304, aerospace-grade 3" Stainless Steel to produce a sturdy custom upgrade. It is built to withstand high exhaust temperatures of up to 1500 degrees. Also, it has a chrome coat finish that protects the exhaust tube from wear-n-Tear.

    Direct, Bolt-On Replacement Upgrade. This high-performance off-road H-pipe is engineered to replace your stock factory manifolds. It is a ready, bolt-on upgrade, easily installed using simple tools. However, for better performance, it should be used with Kooks LTHs.

    Warranty. Kooks guarantees their H-Pipe to be of high quality and offers the original purchasing client, a Limited Lifetime Warranty.

    Application. This Kooks 3 in. Off-Road H-Pipe is machined to fit all 2011 – 2014 Mustang GT models.

    Fitment: 2011 2012 2013 2014 Details

    CA Residents: Warning: California's Proposition 65

    What's in the Box
    • (1) 3" Off-Road H-Pipe
    • (2) Exhaust Clamps
    Installation Info
    Tech Specs
    Will it fit my Mustang?

    You Might Also Like

    Customer Photos

    Questions & Answers (3)

    3 Top Rated Questions

    What kind of tone or sound level difference does this have versus the catted H pipe? Also, I have the kooks LTH and catted H pipe on the car now, can the off-road replace the catted H pipe without a new tune?

    • The main difference when switching from a catted h-pipe to an off roadh-pipe would be the volume, the tone of the exhaust would be the same. The off-road h-pipe would make the exhaust louder than the catted h-pipe. Unfortunately, this mid pipe will need a tune since you will be deleting the catalytic converters. 

    Helpful (0)

    Its the same size as the pipes leading to the axel back. How do I get the h pipe on?

    • The Kooks 3 in. Off-Road H-Pipe is reduced at the connection point to your cat-back to allow it to slide inside of the exhaust to be clamped in.

    Helpful (0)

    would this fit with the BBK long tube?

    • Unfortunately, the Kooks 3 in. Off-Road H-Pipe would not work with the BBK Long tube headers due to them being designed to work for the Kooks long tube headers.

    Helpful (0)
    Post Your Question


    Related Mustang Categories