Fitment: This exhaust fits 2015 - 2021 Subaru WRX and STI models. Features: It reduces turbo lag for better throttle response. Works great on both stock and high - performance vehicles with upgraded turbines. The exhaust sound meets JASMA standards and has a unique engine - specific tone. It boosts both horsepower and sound. Made from top - quality 304 stainless steel, it ensures long - term reliable operation. Specs: 3' to split 2.4' piping, two 4.9' polished exhaust tips. It's 85dB compared to the stock 78dB (both 60dB at idle). HKS designed it for a dry, sporty exhaust sound that you can hear inside the car when you step on the pedal. They used a 75mm straight structure for low exhaust pressure and in - car comfort. Note: If you're using a stock j pipe or downpipe, the GrimmSpeed Subaru Stock DP to Aftermarket 3 in. Catback Adapter p/n 077046 is required.
Using this HKS Super Turbo Cat Back Exhaust is easy. Just install it according to the provided instructions for your 2015 - 2021 Subaru WRX or STI. When you drive, you'll notice the improved throttle response right away. If you're using a stock j pipe or downpipe, don't forget to get the GrimmSpeed adapter as mentioned. For maintenance, regularly check the exhaust for any signs of damage or loose parts. Since it's made of 304 stainless steel, it's quite durable, but a simple visual inspection every few months can help keep it in top shape. And enjoy the sporty exhaust sound it gives your vehicle!
