Boosted Engineering B48 High-Flow Downpipe (Catless)

Gen 1 & Gen 2 Compatibility

Unlock the full performance potential of your B48.

The Boosted Engineering B48 High-Flow Downpipe is engineered to significantly reduce exhaust backpressure, improve turbo response, and increase horsepower and torque while maintaining precise factory-style fitment.

Whether you're running a stock turbo or a tuned setup, this is a core performance upgrade for any serious B48 build!

The following are typically required to run this kit at intended output. Boosted Engineering can supply or advise on all of them.

• ECU tune (custom)Boosted Engineering supplies base map
• Upgraded fuel systemInjectors, fuel pump — spec varies with output
• Upgraded ignitionR35 coilpack conversion recommended
• Upgraded clutchTwin-plate for higher-power builds
• Oil cooler kitRecommended for sustained high-load use
• Upgraded axlesFor 350+ kW builds

The Street Kit is designed for daily-drivable turbo builds with reliable, responsive power delivery. The Race Kit is oriented toward circuit and drag use where higher output and modular servicing are priorities.

The kit is designed for bolt-on installation in a suitably-equipped workshop. Installation is available at our Carrara QLD workshop, or through our trusted partner network in most metropolitan areas.

Approximate installation time — 20 to 30 hours depending on configuration and supporting work.