PLM - SUB - MID - 2015 - NON. Upgrade your Subaru WRX STI with the PLM Private Label Mfg. Power Driven 3 - inch NON - Resonated Midpipe Kit. It's engineered to boost horsepower, improve exhaust flow, and increase power, torque, and sound, all without sacrificing ride height. The CNC mandrel - bent tubing ensures a consistent diameter throughout the bend, offering a precise fit and better exhaust gas flow. This system comes with a straight pipe to remove the resonator, stainless steel flanges, and is a direct fit for our muffler deletes or axlebacks (not included). Finish it off with a straight - through, low - restriction racing muffler for smooth flow. Note: This product is not compatible with SPT Axleback exhaust systems. Features include stainless - steel construction, a one - year limited warranty, replacement grade 8 nuts and bolts, a machined CNC - ed flange, precision CNC mandrel bending, a dolphin tip muffler, a 3 - inch split to 2.5 - inch design, included gaskets and bolts, a non - resonated version, and professional Tig welding and assembly. It bolts directly onto PLM Axleback for easy installation (may not fit other axleback systems).

Using this midpipe is straightforward. First, make sure your vehicle is the Subaru WRX or STI from 2015 - 2021. If you have an SPT Axleback exhaust system, this midpipe won't work, so don't try to install it. To install, simply bolt it onto your PLM Axleback as it's a direct - fit product. Remember, it might not fit other axleback systems. When it comes to maintenance, since it's made of stainless steel, it's fairly durable. But over time, you can clean it with a mild stainless - steel cleaner to keep it looking good. Check the nuts and bolts regularly to ensure they're tight. If any parts start to show signs of wear, you can use the replacement grade 8 nuts and bolts that come with the kit. And if you have any issues, you're covered by a one - year limited warranty.