This extension pipe is used to adapt the 147.4" Wheelbase BORLA systems to vehicles with Crew Cab with Standard Bed (6' 7") 157" wheelbase. 3" ID inlet, 3" OD outlet, 12" long. Includes 1) 3" Clamp. Built from premium, high-quality austenitic T-304 stainless steel, to give you the absolute best in performance and durability. Precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA stands behind every extension pipe with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2019-2024	Chevrolet	Silverado 1500	Custom
2019-2024	Chevrolet	Silverado 1500	Custom Trail Boss
2019-2024	Chevrolet	Silverado 1500	High Country
2019-2024	Chevrolet	Silverado 1500	LT
2019-2024	Chevrolet	Silverado 1500	LT Trail Boss
2019-2024	Chevrolet	Silverado 1500	LTZ
2023-2024	Chevrolet	Silverado 1500	PPV
2019-2024	Chevrolet	Silverado 1500	RST
2019-2021	Chevrolet	Silverado 1500	SSV
2019-2024	Chevrolet	Silverado 1500	WT
2022-2024	Chevrolet	Silverado 1500	ZR2
2019-2024	GMC	Sierra 1500	AT4
2022-2024	GMC	Sierra 1500	AT4X
2019-2021	GMC	Sierra 1500	Base
2019-2024	GMC	Sierra 1500	Denali
2022-2024	GMC	Sierra 1500	Denali Ultimate
2019-2024	GMC	Sierra 1500	Elevation
2022-2024	GMC	Sierra 1500	Pro
2019-2024	GMC	Sierra 1500	SLE
2019-2024	GMC	Sierra 1500	SLT