Exhaust System

Constructed from T304 stainless steel, it features a 2.99" (76 mm) diameter piping and a high-flow catalytic converter, designed to increase horsepower and torque without sacrificing low-end power. This down-pipe is built with utmost care and attention to detail, providing unmatched durability and strength even in extreme operating conditions. Invidia is known for manufacturing reliable parts that operate at maximum performance levels for extended periods. The quality stainless steel construction ensures rigidity, strength, and resistance to corrosion for long-term service. Applications include the 2015-2021 Subaru WRX with a Manual Transmission (MT only). Installation may require new studs, especially in high rust areas, and some users recommend using penetrating oil on turbo stud bolts. While designed to avoid O2 sensor codes, some users have reported experiencing them, suggesting that an open-source tune may be necessary for optimal performance and code management.