Free Shipping on Orders Over $75. Details

Talk to Wrangler Enthusiasts
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $15,000!! Enter Now
Coronavirus: We are Open For Business, Prioritizing health and safety Learn More

Kooks 3-Inch GREEN Catted Y-Pipe (07-18 Jeep Wrangler JK w/ LS Engine Swap)

Item J122732
Call a Wrangler Enthusiast at 1-877-870-8556
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $1,516.99 You Save 12% ($174.98)
Our Price

$1,342.01 (each)

FREE Shipping

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
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.

      Product Information

      Features, Description, Specs & Installation


      • Increased Horsepower and Torque
      • Raspy High-Performance Growl
      • Catted Y-Pipe Design
      • Includes Kooks High-Flow Green Catalytic Converters
      • Meets Federal EPA Emission Standards
      • 3-inch Stainless Steel Tubes
      • Precise CAD Design Work
      • Mandrel-Bent Pipes
      • For Street and Off-Road Use
      • Requires Kooks Headers
      • Fits 2007 to 2018 Jeep Wrangler JK Models with LS Engine Swap


      Improves Exhaust Flow. The  Kooks 3 in. Green Catted Y-Pipe is specially designed for use either out on the street or on the trail. The large diameter tubes and mandrel-bent pipes ensure improved exhaust flow for more horsepower and torque. It features a set of Green catalytic converters that are specially designed to meet Federal EPA standards and can prevent emission related Check Engine lights. Note that this Y-pipe requires Kooks Headers and either Kooks or custom cat-back systems.

      High-Performance Growl. Other than improving performance, the large pipes also improve the Jeep's volume. The Y-pipe design adds a bit of a rasp to the exhaust sound.

      Includes Kooks Green  Catalytic Converters. This catted Y-pipe replaces the factory cats with high-performance, Green catalytic converters.  However, note that the Y-pipe is not CARB certified or exempt at this time and is not legal for use in California or states adopting California emission standards.

      Superior Modern Construction. Kooks makes excellent use of their CAD tools to ensure the best, high-performance designs for their products. Furthermore, they use CNC precision-machining to shape the high-grade stainless steel for excellent fit and performance.

      Application. The Kooks 3 in. Green Catted Y-Pipe is designed to fit 2007 to 2018 Jeep Wrangler JK models with LS Engine Swap.

      Fitment: 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

      MPN# 37103300

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Questions & Answers (0 answers)

      No questions about this product yet.

      Ask the First Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Y-Pipe with Catalytic Converters
      • Installation Hardware

          Related Wrangler Categories