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SpeedTech Hi-Flow Downpipe Tri-Metallic Catalytic Converter Subaru STI 04-07



Model #WRX0407DPC

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This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.

Purchasing this product requires you to sign our Vehicle Compliance Waiver here.

SpeedTech Hi-Flow Downpipe Tri-Metallic Catalytic Converter Subaru Impreza STI 04-07

Speed Technologies over the years have become the leader in providing the daily 700HP plus driven Porsche 996TT with the proper exhaust and accessories. With 20 years of experiences, the result is a line of superior performing exhausts for a variety of Porsche automobiles.

SpeedTech new Downpipe is designed at the same high quality T304 Stianless Steel from all of their exhaust systems. The downpipe features a 4" belmouth with 3" piping. The system itself will reduce back pressure and enable a quick turbo response. Substantially increases horsepower and torque, along with improving throttle response with the free flowing 3" straight-thru Hi-Flow design.


  • T304 Polished Stainless Steel
  • Tri-Metallic catalytic converter
  • 4" belmouth with 3" piping
  • Fits models Subaru WRx 02-07, STI 04-07

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    Vehicle Engine Notes
    Subaru STI

    Subaru WRX

    Warranty: All SpeedTech products are protected by a lifetime warranty against manufacturing defects or structural failure for the original owner. This excludes catalytic converters which carry a 3 year warranty for the original owner. Our Catalytic converter warranty is for catalytic converter efficiency performance only and does not cover failure or abuse from track, off road or racing events. Any products sold that are manufactured by other companies (such as spark plugs, coils, etc.) offer the warranty from the original manufacturer.

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