Fitment: This exhaust fits 2015 - 2021 Subaru STI and WRX models. Note that it only works with Standard OEM Midpipe or REMARK Midpipe kit and does not fit aftermarket exhaust systems. Features: The Remark Boso Edition axleback exhaust offers a 'Bosozuku' - inspired style and a loud, aggressive Subie sound. It's crafted from high - quality 304 stainless steel with hand - crafted tig welding. It saves weight, boosts power, torque, and sound. It has a muffler delete straight pipe design, direct bolt - on installation to OEM or Remark mid Y - pipe, mandrel bent piping, factory OEM style exhaust hanger rod construction, and comes with gaskets and bolts. It also reduces weight compared to factory mufflers. Specs: Made of T304 Stainless Steel, with 2.5 - inch 16 - gauge piping, ultra - aggressive quad slant style 3.5 - inch tips, and single - wall burnt stainless steel tips. Pair it with a Remark mid pipe for a complete cat - back exhaust. Difference between SPT and Standard: Standard axleback exhausts have rounded rhombus - shaped attachment points with 2 holes, while SPT systems have a triangular - shaped flange with 3 holes. If your vehicle has an SPT midpipe, check out our Remark SPT axleback exhausts.






Using your Remark Boso Edition Axleback Exhaust is a breeze. First, make sure your vehicle is an appropriate 2015 - 2021 Subaru WRX or STI and that you have a Standard OEM Midpipe or REMARK Midpipe kit. This exhaust won't work with aftermarket exhaust systems. Installation is simple as it's a direct bolt - on to the OEM or Remark mid Y - pipe. Just follow the instructions and use the included gaskets and bolts. As for maintenance, since it's made of high - quality 304 stainless steel, it's fairly durable. But it's a good idea to clean it regularly with a mild stainless - steel cleaner to keep it looking great. Also, check the bolts and gaskets periodically to make sure they're tight and in good condition. Enjoy the 'Bosozuku' - inspired style and the aggressive Subie sound that this exhaust brings to your ride!