Korsh Catted Down pipe for Subaru WRX STI 2001-2007
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Description
Korsh Catted Downpipe — Subaru WRX / STI (2001–2007)
The Korsh catted downpipe is the highest flowing downpipe on the market for the 2001–2007 Subaru WRX and STI platform. Featuring a high-flow 200-cell catalytic converter, this downpipe delivers maximum exhaust flow while remaining street legal and emissions compliant. Precision-engineered mandrel bends and a cast head flange ensure unrestricted flow and a perfect, leak-free fit.
Constructed from 304 stainless steel with cast flanges, this downpipe is built to handle sustained high-temperature operation on both street and track. Suits both RHD and LHD vehicles. Backed by a lifetime warranty — Korsh stands behind every product they make.
Suits:
- Subaru WRX GD/GG (2001–2007)
- Subaru STI GD/GG (2001–2007)
Key Features:
- Highest flowing downpipe on the market for this platform
- High-flow 200-cell catalytic converter —
- Cast head flange for improved flow and leak-free fitment
- Precision mandrel bends for optimal exhaust flow
- Direct bolt-on fitment — RHD and LHD compatible
- Improved throttle response and power delivery
Specifications:
- Material: 304 stainless steel
- Flanges: Cast — precision fitment, no warping
- Catalyst: High-flow 200-cell cat
- Warranty: Lifetime
Available Part Numbers:
- KOR-EXHDP-01 — Korsh Catted Downpipe, Subaru WRX / STI (2001–2007)
Why Korsh?
- ✅ Highest flowing downpipe on the market for the 2001–2007 WRX/STI platform
- ✅ 304 stainless steel with cast flanges — corrosion resistant, no warping, leak-free
- ✅ High-flow 200-cell cat — maximum performance while remaining street legal
- ✅ Direct bolt-on fitment — suits RHD and LHD vehicles
- ✅ Lifetime warranty — Korsh stands behind every product they make
If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.
Installation
We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.
Note
Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.