Description

• Fits 2019-2021 Chevrolet Silverado 1500/ GMC Sierra 1500 5.3L V8
• Built from premium T-304 stainless steel 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
• Features 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

Borla custom designs each exhaust system for the specific application, to make the most horsepower and torque with the best sound quality. The patented straight through muffler design reduces restriction and increases exhaust gas velocity, making sure each cylinder is completely evacuated to make room for the incoming charge. This design absorbs the sound waves without disturbing the power waves, in contrast to the chambered mufflers used by most aftermarket companies.

Chambered mufflers use partitions or baffles to subdue sound waves, which also creates backpressure and reduces power. The S-Type series muffler is smaller in diameter than the Touring series, with less space between the core and muffler wall, so it contains less sound absorbing composite filament.

Borla S-Type Cat-Back Exhaust Systems

Borla S-type cat-back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower and produce a more aggressive sound and higher flow. 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 300-Series austenitic 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 and power, and precision computer-controlled CNC manufacturing ensures an accurate fit. It’s just what you’d expect from the world’s most experienced (and most winning) exhaust brand.