Muffler contains an internal H-Pipe for increased performance and improved sound. 140638BC is a full True Dual, split rear exit, Cat-Back system with 4″ black chrome on T-304 stainless steel tips. Using BORLA Stainless Steel Polish p# 21461 is NOT recommended with these black chrome tips. We suggest cleaning these black chrome on T-304 stainless steel tips with hot water and a microfiber cloth. A system with bright chrome on T304 stainless steel tips is also available. This system gives the Tundra a great look, pure performance V-8 growl and a nice performance kick. The full dual system even weighs less than the factory single system, thanks to the lightweight T-304 stainless steel fabrication and, not surprisingly, out flows the stock exhaust. BORLA Cat-Back and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere.

Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit.

Fits these Vehicles:

2014-2021 Toyota Tundra 4.6L/ 5.7L V8 Automatic Transmission 2 & 4 Wheel Drive Regular Cab With Long Bed (8′ 2″) 145.7″ Wheelbase/ Extended (Double) Cab With Standard Bed (6′ 7″) 145.7″ Wheelbase/ Crew (CrewMax) Cab with Short Bed (5′ 7″) 145.7″ Wheelbase. BORLA System Is True Dual.