The 6.6L gas V8 is the engine buyers choose in a three quarter ton when they do not want a diesel, and the factory exhaust treats it as an afterthought. This system replaces the pipes behind the catalytic converter with mandrel-bent stainless tubing and S-Type muffler tuning, which adds presence under load without making a work truck tiring to drive. This is the standard tip version.

Borla S-Type Cat-Back Exhaust System Fitment and Specifications:

• Fits select 2020-2026 Chevrolet Silverado 2500 HD and 3500 HD and GMC Sierra 2500 HD and 3500 HD with the 6.6L gas V8, automatic transmission, two and four wheel drive.
• Does not fit diesel engines.
• Covers four door crew cab with the 6 ft. 8 in. bed on the 158.9 in. wheelbase.
• Does not fit trucks with dual rear wheels.
• Extension pipe 60713 is required for crew cab long bed trucks on the 172 in. wheelbase.
• All-welded T-304 stainless steel construction.

Emissions Note:

This part is legal for sale or uses on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART