Fitment: This exhaust fits 2015 - 2021 Subaru STI and WRX models. Features: The HKS Super Turbo Muffler Quad Exit Catback Exhaust is a top - choice for those seeking power and a sporty sound. When you step on the accelerator, it roars with energy and performs well even at low RPMs. Made of 304 stainless steel, it also has super turbo mufflers crafted from titanium. This combination not only reduces weight significantly but also maintains high - level performance. Key features include a quad - exit design, titanium - burnt exhaust tips, and a full 304 stainless - steel build. The exhaust tips have a 90mm (3.54 inches) diameter, and the piping transitions from 75mm to dual 60mm and then to a quad 54mm exit. With a sound profile of 81 - 85 dB (compared to 78 dB stock), it enhances the exhaust flow, reduces turbo lag, and boosts power, performance, and low - end torque. It comes with all the gaskets and necessary hardware for easy installation.
Using this exhaust is straightforward. First, make sure your vehicle is a 2015 - 2021 Subaru STI or WRX. Then, use the included gaskets and hardware to install it properly. When driving, enjoy the improved power and sporty sound. As for maintenance, regularly check the exhaust for any signs of damage or loose parts. Keep it clean to prevent rust. Avoid hitting the exhaust on rough terrain. If you notice any unusual noises or performance issues, have it inspected by a professional.
