Father’s Day Sale – Up to 40% Off! Shop Now >

Kooks 1-3/4-Inch Long Tube Headers with GREEN Catted OEM Connections (15-26 Mustang GT, Dark Horse)Find parts that fit my vehicle

Item 437342
Our Price

$3,096.95 set

Military, Medical & First Responders $154.85 Available in AM Cash Rewards.
Confirm Eligibility

CONFIRM THIS FITS YOUR VEHICLE!

Select a different vehicle Help?
Update or Change Vehicle
    Create a list
    Add to New List

    Saved - View your saved items

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

    Shop Owners Save More! Sign up for our dealer program

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features & Specs

      • 304 Stainless Steel Construction
      • 3/8" Thick Laser Cut Flanges
      • 1-3/4" Mandrel Bent Primaries
      • 3" Collectors With Patented Scavenging Spike
      • Dual Bolt Pattern Header Flange
      • EPA Verified 400 Cell High Flow Catalytic Converters With GREEN Cats
      • GREEN Cats Engineered To Perform In Modern Muscle Cars Up To 750 RWHP
      • Includes Gaskets, Oxygen Sensor Extension Harness, Clamps And Bolt Kit Required For Installation
      • No Additional Parts Required
      • Fits 15-26 Mustang GT, Dark Horse

      Description

      Performance Exhaust Upgrade. The Kooks 1-3/4-Inch Long Tube Headers with GREEN Catted OEM Connections are designed to enhance exhaust flow and improve engine efficiency for Mustang GT and Dark Horse models. These headers are crucial for increasing horsepower and torque while maintaining emissions compliance with high flow catalytic converters.

      Construction and Appearance. Crafted from high-quality 304 stainless steel with 3/8-inch thick laser cut flanges, these headers feature mandrel bent 1-3/4-inch primaries and 3-inch collectors equipped with a patented scavenging spike. The stainless steel finish offers both durability and corrosion resistance while maintaining a polished stainless appearance.

      Installation. Installation typically requires moderate mechanical skills as the headers bolt directly to the existing OEM flanges with included hardware, requiring no drilling or modifications. The kit includes all necessary gaskets, clamps, and an oxygen sensor extension harness for a complete and straightforward installation experience.

      Warranty. This product is backed by a limited lifetime warranty to the original purchaser, ensuring long-term reliability and support.

      Application. Specifically designed to fit 2015-2026 Mustang GT and Dark Horse models equipped with the 5.0L 4V engine.

      Kooks 1151H232

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) a Day

      Difficulty Level:

      Mechanical expertise or professional installation required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Set of Long Tube Headers with Ultra-GREEN Catted Y-Pipe

      5.0

      Customer Reviews (40)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Mustang

      • Bullitt - 19, 20
      • Dark Horse - 24, 25, 26
      • Dark Horse Premium - 24
      • GT - 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26
      • Mach 1 - 21, 22, 23