2024-2025
2015-2023
2010-2014
2005-2009
1999-2004
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1979-1993
Installation Time
(approx) 2 Hours
Difficulty Level:
Simple installation for anyone.
Installation Guides
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Kooks 2.50-Inch GREEN Catalytic Converter; 7-Inch Long (Universal; Some Adaptation May Be Required)Find parts that fit my vehicle
Item 463156
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$392.63 each
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Product Information
Features, Description, Q&A, Specs & Installation
Description
High-Flow and Compliant Catalytic Converter. The Kooks 2.50-Inch GREEN Catalytic Converter is designed to minimize harmful emissions while maintaining optimal exhaust flow. Featuring a 300 CPSI high-flow substrate, this converter complies with EPA standards and is a reliable solution for reducing emissions without sacrificing performance.
Construction and Appearance. Manufactured from top-notch quality materials, this catalytic converter is built for durability and corrosion resistance. Its 3-inch inlet and outlet ensure efficient exhaust flow, while the unit is meticulously engineered in the USA, following rigorous quality standards for long-lasting performance.
Installation. Designed for a straightforward installation, this catalytic converter requires no drilling, cutting, or modifications. It serves as a direct bolt-on component, making the installation process easy and hassle-free.
Application. This Kooks 2.50-Inch GREEN Catalytic Converter is engineered for universal applications.
Kooks GE-90148
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Catalytic Converter
4.8
Reviews of Kooks Exhaust Products (500+)
Reviews of Kooks Exhaust products have an average rating of 4.8 out of 5
Mar 14, 2025
Review shared from Kooks 1-7/8-Inch Long Tube Headers with GREEN Catted OEM Connections (15-25 Mustang GT, Dark Horse)
2022 Mach 1 -
Yes, You will Like them
2022 Mach 1- Started by adding an X-pipe. I wanted it louder. So, I added Kook's 1 7/8 Long Tube Headers with Green Cats, and left the factory active exhaust on. The cold start is really loud. But, it sounds really good. Once it idles down it gets very mild. The harder the you press on the gas, the louder it gets. The active exhaust acually has a very impressive result in quite, normal, & track mode . At W.O.T. it roars like a race car.
Feb 3, 2025
Review shared from Kooks Full 3-Inch Exhaust Connection Adapter (15-23 Mustang GT)
2021 GT - imlaz
Easy Install
took me less than 30 minutes to install and hooked up great
Jan 30, 2025
Review shared from Kooks 1-7/8-Inch Long Tube Headers with Catted OEM Connections (15-25 Mustang GT, Dark Horse)
2023 GT - JohnMc77
Kooks Long Tubes
Quality made product with noticeable gains and aggressive sound using factory active exhaust. Install is not for someone that isn’t mechanically inclined
Sep 22, 2024
Review shared from Kooks 1-7/8-Inch Long Tube Headers with Catted OEM Connections (15-25 Mustang GT, Dark Horse)
2019 GT - Jacob0
For the price I expected perfection
Everything was great except for O2 sensor threads needed some filing down to get the O2 sensors on. There was a bunch of metal shavings in the header from when the hole was drilled out for the O2 sensor and the hole wasn’t clean so had to file it down to thread the O2 in. Also for your own good don’t torture yourself and do this on jack stands I highly regret doing it I had to buy so many tools would have costed the same as shop install.
Mar 9, 2024
Review shared from Kooks 1-7/8-Inch Long Tube Headers with GREEN Catted OEM Connections (15-25 Mustang GT, Dark Horse)
2024 GT - GregoryP
Difficult install
Wow what a wonderful sound well worth the money and time. I had a lift and all the tools and it took me a full day. Step on the gas and it kicks you in the A$$. JUST GET THEM ALREADY YOU KNOW YOU WANT THEM.
Mar 6, 2024
Review shared from Kooks 1-7/8-Inch Long Tube Headers with GREEN Catted H-Pipe (11-14 Mustang GT)
2013 GT - biggrifff
The missing peice the cobra jet intake manifold
Im very pleased with my purchase of the kooks 11/78 headers with catted hpipe I totally wakes up the car paired with cobra jet intake manifold ford racing twin 65 mm throttle body and ford racing cold air intake, I like the deeper sound of the catted hpipe paired with corsa extreme quad tip exhausts sounds way better than pair with the off road hpipe
Feb 7, 2024
Review shared from Kooks 1-7/8-Inch Long Tube Headers; Catted (15-23 Mustang GT)
2017 GT - JeremyF
Excellent product.
Great fit. No issues , sound very good. Headers didn’t hang down to low at all. This is very well built
Nov 1, 2023
Review shared from Kooks O2 Sensor Extension Harness; 24-Inch (96-04 V8 Mustang)
2004 V6 - Gunderson
Installing new cats
Replacing the factory cats with new Magna Flow cats required sensor extensions. These were a perfect solution with simple installation.
Oct 26, 2023
Review shared from Kooks 1-7/8-Inch Long Tube Headers; Catted (15-23 Mustang GT)
2021 Mach 1 - EfrainR
For 2021 mustang Mach 1
This is a MUST buy for your coyote! It opens up the volume so well and turns it into a completely different car. The power is noticeable and the sound is unbelievable! It’s musics to my ears. Just these headers and an x pipe make the car sound like a beast. WORTH IT!
Sep 2, 2023
Review shared from Kooks 1-7/8-Inch Long Tube Headers; Catted (15-23 Mustang GT)
2018 GT - 2018GTPP1
Kooks Catted Headers
Outstanding quality! Need a tune after installation. I have this paired with Borla S Type and the sound was what I expected, deep tone and loud.
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