Japspeed
Japspeed Exhaust Sports Cat Downpipe for Subaru Impreza GDA WRX STI (01-07)
Japspeed Exhaust Sports Cat Downpipe for Subaru Impreza GDA WRX STI (01-07)
SKU: SKU: ZZ03886
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- Performance parts Specialist
- Established Since 2009
- UK Based support
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The Japspeed Stainless Steel Sports Cat Downpipe is designed to improve exhaust flow and turbocharger performance on Subaru Impreza New Age WRX and STI models from 2001 to 2007.
Replacing the restrictive factory downpipe and catalytic converter with a larger 3-inch stainless steel downpipe allows exhaust gases to flow more efficiently, helping reduce back pressure, improve turbocharger response and support increased engine power output.
Manufactured from high-quality T304 stainless steel, this one-piece downpipe incorporates a 200CPI sports catalytic converter, offering improved exhaust flow compared with the original restrictive catalytic converter while retaining a catalytic element.
The downpipe features TIG-welded construction and CNC-machined flanges for strength, durability and corrosion resistance.
Designed as a replacement for the factory downpipe and catalytic converter assembly, the kit includes the lower gasket and bolts required for installation.
Features
- Manufactured from T304 stainless steel
- 3-inch exhaust bore
- One-piece downpipe construction
- Built-in 200CPI sports catalytic converter
- Non-type-approved sports catalytic converter
- Replaces the restrictive factory downpipe and catalytic converter
- Improves exhaust gas flow and reduces restrictions
- Helps improve turbocharger response and engine performance
- Designed to support increased engine power output
- TIG-welded construction
- CNC-machined flanges
- Lower gasket and bolts included
Vehicle Fitment
- Subaru Impreza New Age GDA WRX (2001–2007)
- Subaru Impreza New Age STI (2001–2007)
Please Note
The integrated 200CPI sports catalytic converter is not type-approved for road use.
Fitment of a sports catalytic converter does not guarantee an MOT emissions test pass.
Please check turbocharger, downpipe and exhaust flange compatibility before ordering, particularly on vehicles fitted with aftermarket or twin-scroll turbocharger setups.

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