MBRP Armor Pro Series 4-Inch Cat-Back Exhaust for 2020-2026 GMC/Chevrolet 2500/3500 (6.6L)

Fits 2020-2026 Chevrolet Silverado 2500 HD / 3500 HD and GMC Sierra 2500 HD / 3500 HD (6.6L).

The MBRP Armor Pro Series exhaust system is engineered for the heavy-duty truck owner who demands maximum durability in extreme environments. Constructed from premium T304 stainless steel, this 4-inch cat-back system offers the highest level of corrosion resistance available, making it the ideal choice for trucks frequently exposed to salt, snow, or high humidity. The mandrel-bent tubing ensures consistent diameter throughout each bend, significantly reducing backpressure and lowering exhaust gas temperatures (EGTs) while allowing the 6.6L Duramax engine to breathe more efficiently.

This bolt-on system is designed to utilize factory hanger locations for a straightforward installation process. The single-side exit provides a clean, refined look, topped off with a substantial 5-inch OD stainless steel tip. Beyond the aesthetic upgrade, drivers will experience improved throttle response and a mellow, performance-oriented exhaust note that isn't overbearing during long hauls.

• 4-inch mandrel-bent T304 stainless steel tubing for maximum flow
• 5-inch OD stainless steel tip included
• Direct bolt-on design using OEM hangers
• Lowers exhaust gas temperatures (EGTs) for improved engine longevity
• Delivers a mellow, non-intrusive exhaust note
• Lifetime manufacturer warranty