Korsh Twin Scroll Down Pipe suit 08-21 JDM STI Catless

Korsh Twin Scroll Down Pipe — 08–21 JDM STI (Catless)

Direct-fit catless twin scroll down pipe for the 2008–2021 JDM Subaru Impreza STI. Engineered to complement the factory twin scroll turbocharger setup, this down pipe removes the restriction of a catalytic converter entirely — ideal for track, motorsport, or off-road use where emissions compliance is not required.

Key Features

• Catless Design — No catalytic converter for maximum exhaust flow and minimal back pressure. Optimised for track and competition use.
• 304 Stainless Steel Construction — Full 304 stainless throughout for superior corrosion resistance and long-term durability under extreme heat cycles.
• Wax Cast Twin Scroll Head Flange — Precision wax cast flange ensures a perfect seal to the twin scroll turbine housing, eliminating leaks and maintaining spool characteristics.
• Bolt-On Fitment — Direct replacement for 08–21 JDM STI. No cutting, drilling, or fabrication required.

Note: This catless down pipe is intended for off-road/motorsport use only. It is not road legal in all jurisdictions. Please check local regulations before purchase.

Specifications

Please contact us for lead time and availability. For fitment queries, reach out via the Coore website at coore.com.au.