Description
Boost Performance. The Kooks 3-inch Green Catted Y-Pipe adds more horsepower and torque to your Sierra’s 6.2L engine. This pipe features EPA certified green catalytic converters that improve performance when working with the required Kooks Long Tube Headers, while simultaneously lowering emissions.
Crisp Exhaust Sound. Along with delivering more power to your truck, this Kooks y-pipe also adds an aggressive exhaust note to your factory catback exhaust thanks to the “Y” shaped mandrel-bent tubing.
Top Quality. The high-flow Kooks Green Catted Y-Pipe has strong stainless steel tubing with a 3-inch OEM outlet to connect Kooks Long Tube Headers to the single stock exhaust system. Follow the included instructions for a straightforward installation. The pipe weighs 35 lbs. and features a 16-gauge design.
Application. The Kooks 3-inch Green Catted Y-Pipe is made for 2014 to 2018 6.2L V8 GMC Sierras only and must be installed with the matching Kooks Long Tube Headers (sold separately). It is not California street-legal.
Kooks GREEN Catted products are rated for forced induction applications making up to 750 RHWP and are built to EPA specifications.
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Kooks 28613300
CA Residents: WARNING: Cancer and Reproductive Harm
- For Use with Kooks Long Tube Headers
- More Horsepower and Torque
- For OEM Catback Exhausts
- Mandrel-Bent Stainless Steel Tubing
- 16-Gauge Design
- Specs: 3″ DIA; 35 lbs.
- Includes Kooks Green Catalytic Converters
- EPA Certified Converters Lower Emissions
- Not California Legal
- Aggressive Exhaust Sound
- Straightforward Installation
- Fits 2014-2018 6.2L Sierras


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