Fitment: This exhaust fits 2015 - 2021 Subaru WRX and STI models. Key Features: It boosts power, performance, and low - end torque. The aggressive and loud exhaust note gives your car a sporty feel. It enhances exhaust flow and reduces turbo lag. Made of 304 stainless steel, it offers great durability. The 3 - inch piping diameter and 3.8 - inch tip diameter ensure efficient exhaust. With a sound level of 90dB, it's sure to turn heads. The HKS exhaust weighs 33 pounds, lighter than the 46 - pound stock system. It has exhaust hangers welded at OEM locations for easy replacement and comes with new hardware and O - ring gaskets. HKS designed this free - flowing exhaust with a built - in resonance pipe to eliminate low exhaust resonance, allowing you to enjoy the great boxer sound. 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 cat - back exhaust is easy. First, make sure you have all the necessary tools. Remove the old exhaust system carefully, following the standard procedures. Then, install the new HKS exhaust by aligning the exhaust hangers with the OEM locations. Use the new hardware and O - ring gaskets provided. If you're using a stock j pipe or downpipe, don't forget to get the GrimmSpeed adapter. When it comes to maintenance, keep an eye on the exhaust for any signs of damage or corrosion. You can clean it regularly with a mild stainless - steel cleaner to keep it looking good. Also, check the connections periodically to ensure they're tight. And always remember, if you have any issues, it's best to consult a professional mechanic.
