The K&N 67-3109 cat-back exhaust kit is engineered to increase performance, deliver robust sound, and install quickly and easily on certain GM Sierra models.

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The K&N 67-3109 cat-back exhaust kit is engineered to increase performance, deliver robust sound, and install quickly and easily on certain GM Sierra models. Enjoy excellent quality paired with a simple and clean appearance. The 67-3109 system maintains clearance to critical systems, and typically installs in less than 60 minutes using factory mounting points (no cutting or welding necessary). The system pairs with most aftermarket modifications, including intake systems, throttle control modules, and more. No calibration tuning is required, and complete instructions are included.

• Composed of CNC mandrel-bent tubing / 304 stainless steel
• Engineered using advanced computer-aided design software
• Can typically be installed in under 60 minutes
• Bolt-on using factory mounting points - no cutting or welding
• Pairs with most aftermarket modifications, including intake systems, pedal controllers, and more
• Engineered to increase horsepower and torque
• Custom-designed for a more aggressive sound

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Application Summary:

Year	Make/Model
2019-2024	Chevrolet Silverado 1500
2019-2021	GMC Sierra
2023-2024	GMC Sierra
2019-2024	GMC Sierra 1500