Fitment: This axle back exhaust is specifically designed for Subaru WRX from 2015 to 2021 and Subaru STI from 2015 to 2018. Note that it won't fit the 2019 - 2021 STI; you must use a full catback system for those models.
Features:
- 2.5 - inch Stainless Steel Piping offers durability and corrosion - resistance.
- All necessary hardware is included for a hassle - free installation.
- Quad 3.5 - inch Double Wall tips give your car a sporty and stylish look.
- It's incredibly easy to install, even for DIY enthusiasts.
- You can choose the option with or without mufflers according to your preference.
- It boosts both performance and sound, enhancing your driving experience.
- Comes with a lifetime warranty for your peace of mind.
The 2.5 - inch axle back mates perfectly to the stock 2 - bolt flange.


Using this ETS axle back exhaust is a breeze. First, gather all the included hardware. If you're doing the installation yourself, make sure you have the right tools. Remove the old exhaust carefully and then attach the new axle back exhaust to the stock 2 - bolt flange. Tighten all the connections properly. If you choose the option with mufflers, they'll help reduce the noise a bit. Without mufflers, you'll get a more aggressive sound. As for maintenance, regularly check the connections to ensure they're tight. Clean the stainless - steel piping with a mild cleaner to keep it looking good. Also, remember that this exhaust won't fit the 2019 - 2021 STI models, so make sure you've got the right fit for your car.