Q300 Cat-Back Exhaust System, 76mm Pipes, 110mm Tips

The Invidia Q300 Rolled Polished 4-tip Catback Exhaust system is engineered for the 2015-2021 Subaru WRX and STI models, offering a blend of performance enhancement and refined sound. Constructed from high-grade SUS304 stainless steel, this exhaust system features robust CNC-machined flanges and precise robot TIG welding for durability and optimal fitment. The internal design incorporates a continuous piping layout and Advantex material within the flat-bottom shaped muffler. This configuration promotes excellent high-speed aerodynamic performance and allows for free-flowing exhaust gases with optimized back pressure, which contributes to increased horsepower and torque. The Q300 system boasts a 76mm (3-inch) pipe diameter and culminates in stylish 110mm (4.3-inch) rolled polished tips, providing a distinct visual upgrade. Invidia has focused on delivering a rich, deep, and sporty exhaust note without the common drawback of excessive highway drone, making it an appealing option for enthusiasts seeking an improved driving experience.