コレクション: Subaru Turbo-Back Exhaust Power Packages

Subaru Turbo-Back Exhaust Power Packages — Korsh, COBB Tuning & Tomei

The most comprehensive exhaust upgrade available for your Subaru — from the turbo outlet all the way back. Our Turbo-Back Exhaust Power Packages combine a high-flow Korsh downpipe with a performance cat-back from Korsh, COBB Tuning, or Tomei, giving you a complete, matched exhaust system built to move serious air. Suited to Subaru WRX and STI applications from 2008 through to 2025.

What's in the Package

• Korsh Downpipe — Catted or Catless
  The foundation of any turbo-back system. Korsh downpipes are available in catted (high-flow sports cat) and catless configurations to suit street builds and full motorsport applications respectively. Direct bolt-on fitment to OEM turbo flanges across EJ and FA platform Subarus.
• Cat-Back Exhaust System — choose from three proven options:
  • Korsh Cat-Back — A matched pairing with the Korsh downpipe for a fully integrated system. Consistent diameter, optimised flow, and a refined aggressive tone.
  • COBB Tuning Cat-Back — Engineered alongside COBB’s ECU tuning platform for optimised power delivery. Pairs seamlessly with the COBB Accessport for a complete hardware-and-tune solution.
  • Tomei Expreme Cat-Back — Lightweight titanium and stainless construction with a distinctive Tomei sound signature. A premium option for builds where weight reduction and performance are equally important.

Vehicle Applications

• Subaru WRX & STI — 2008 to 2025
  Covering EJ20, EJ25, EJ257, FA20, and FA24 platforms across GH, GR, VA, and VB chassis generations.

Why Go Turbo-Back?

A turbo-back system replaces every restrictive component from the turbo outlet to the rear of the car. Compared to a cat-back alone, a turbo-back delivers significantly greater reductions in backpressure — translating to faster spool, stronger mid-range torque, and higher peak power. It's the single most impactful exhaust upgrade available for a turbocharged Subaru.

We strongly recommend pairing any turbo-back system with an ECU retune via the COBB Accessport to fully realise the performance gains on offer.

Catless downpipes are intended for off-road and motorsport use only. Confirm your chassis and engine code at the product level before purchasing. For build advice or custom tune recommendations, contact us before ordering.

Lead times vary by brand and configuration. Contact us for current stock availability and ETA on specific package builds.