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 30 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.
Installation Instructions
Technical Drawing


This Part Fits:

Year	Make	Model	Submodel
2019-2020	Chevrolet	Silverado 1500	Custom
2019-2020	Chevrolet	Silverado 1500	Custom Trail Boss
2019-2020	Chevrolet	Silverado 1500	High Country
2019-2020	Chevrolet	Silverado 1500	LT
2019-2020	Chevrolet	Silverado 1500	LT Trail Boss
2019-2020	Chevrolet	Silverado 1500	LTZ
2019-2020	Chevrolet	Silverado 1500	RST
2019-2020	Chevrolet	Silverado 1500	SSV
2019-2020	Chevrolet	Silverado 1500	WT
2019	GMC	Sierra 1500	AT4
2019-2020	GMC	Sierra 1500	Base
2019-2020	GMC	Sierra 1500	Denali
2019	GMC	Sierra 1500	Elevation
2019-2020	GMC	Sierra 1500	SLE
2019-2020	GMC	Sierra 1500	SLT