HKS Hi-Power Cat Back Exhaust Subaru WRX 02-07 / STI 04-07 | 3106-EX008

This HKS Hi - Power Cat Back Exhaust is designed specifically for 2002 - 2007 Subaru WRX and 2004 - 2007 Subaru STI models. It offers multiple great features. First, it boosts horsepower and torque by providing a smooth exit path for exhaust gases. It also significantly reduces turbo lag, giving your car a quicker response. The exhaust produces an aggressive and sporty exhaust note that turns heads. It comes with a polished 4.72 - inch tip and 3 - inch piping. The muffler is made of SUS304 stainless steel, and the exhaust is crafted from SUH409 stainless steel. This exhaust system features 3 - inch coated mild - steel piping and a stainless - steel angled - exit Hi - Power muffler, delivering a true JDM look and sound. The full - straight 3 - inch piping and free - flowing muffler reduce backpressure, resulting in notable performance gains and a deep, throaty exhaust tone. Note: If you're using a stock j - pipe or downpipe, you'll need to buy the GrimmSpeed Subaru Stock DP to Aftermarket 3' Catback Adapter separately.

Using this HKS Cat Back Exhaust is straightforward. Just install it following the provided instructions that match your Subaru WRX or STI model year. Make sure all the connections are tight to avoid any exhaust leaks. When it comes to maintenance, regularly check the exhaust for any signs of damage, like dents or cracks. You can clean the polished tip with a mild stainless - steel cleaner to keep it looking shiny. If you notice any unusual noises or a change in performance, it might be a sign that something is wrong, so have it inspected right away. Also, remember that if you're using a stock j - pipe or downpipe, you need the separate GrimmSpeed adapter. Keep it in mind when you're planning your exhaust upgrade.