Large Bore-HD Turbo Down-Pipes (4" 409 Stainless Steel)

The Large Bore-HD down pipe upgrade kit is constructed of mandrel bent 409 stainless steel with OE style hangers and clamps. This 4" down pipe provides maximum flow for increased horsepower, torque and throttle response. The increased air flow also lowers EGT's and helps improve MPG. All hardware and components are included for a no-trouble installation.

Emissions Disclaimer:
This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.

All aFe exhaust systems are engineered and manufactured in our Corona, California facility.