The Killer B Motorsport Intermediate Pipe is designed as a Performance replacement for the Restrictive Factory Component. It can be used with the OEM J-Pipe or the Killer B Motorsport Performance J-Pipe Pipe. The Killer B Motorsport Intermediate Pipe will provide Faster Turbocharger Spool and Responsiveness. The Free Flowing performance oriented design will Reduce Exhaust Backpressure providing More Torque, More Horsepower and provide a more Aggressive Sound. The Killer B Motorsport Intermediate Pipe is a Performance Enhancing product, a custom tune is highly recommended for obtain maximum power potential and engine reliability. As with any Killer B Motorsport products, you can expect Top Quality Materials and craftsmanship.