Fitment: This exhaust fits 2015 - 2021 Subaru STI and WRX models. Note that it only works with SPT midpipes, not non - SPT ones, and Type RA models are not compatible. Features: The Remark SPT axleback exhaust offers an upgraded style and an improved Subaru sound. Crafted from high - quality 304 stainless steel with hand - crafted tig welding, it saves weight and boosts power, torque, and sound. It has a muffler - delete straight - pipe design, direct bolt - on installation for SPT exhaust systems, mandrel - bent piping, and factory OEM - style exhaust hanger rod construction. Gaskets and bolts are included, and it reduces weight compared to factory mufflers. Specs: Made of T304 stainless steel, with 2.5 - inch 16 - gauge piping, quad slant 3.5 - inch tips, and single - wall burnt stainless - steel tips. SPT vs. Standard: SPT axleback exhausts have a triangular flange with 3 holes to match your factory SPT midpipe. If your vehicle has a standard OEM midpipe or REMARK midpipe kit, check out our non - SPT axleback exhausts.





Using this Remark SPT axleback exhaust is straightforward. First, make sure your vehicle is a 2015 - 2021 Subaru STI or WRX and has an SPT midpipe, as it won't fit non - SPT midpipes or Type RA models. Installation is a direct bolt - on process to your SPT exhaust system. Just use the included gaskets and bolts to attach it. When it comes to maintenance, since it's made of high - quality 304 stainless steel, it's quite durable. But it's a good idea to regularly check the bolts for tightness, especially after driving on rough roads. If you notice any rattling sounds, it could mean a bolt has come loose. Also, keep an eye on the exhaust tips. Wipe them down occasionally to maintain their burnt stainless - steel look. If you take these simple steps, your exhaust will keep performing well and looking great for a long time.