Description
Technical Notes
Product Description
RallySport Direct proudly carries a great selection of performance upgrades brought to you by the record holders at AMS Performance.
This is the AMD Performance Toyota GR Supra Street Downpipe with a built-in Gesi Catalytic Converter. This is a 4.5″ full mandrel-bent example that is one of the most durable, and best-performing examples that is currently available on the market. The long gradual transitions in the mandrel bent pipe allow the exhaust gases to maintain velocity without a buildup of back pressure inside of the system. AMS was able to design a superior product due to the latest in engineering, research, and development to provide you with a quality product.
HIGHLIGHTS:
- 304 stainless steel construction
- 4.5″ design reduces to a 3.5″ flex section which will maximize volume and flow
- Significantly lowered back pressure means the potential for more power
- The exhaust gases can easily flow across the turbine wheel
- 49-state legal built-in GESI catalytic converter rated to over 800 horsepower
- Newly formulated substrate for new vehicle emissions requirements
- Delivers a throaty exhaust note under wide open throttle
- CAD engineered for maximum exhaust flow with unrivaled fit and finish
- The turbine flange offers a smooth transition from the turbine outlet
- The 3.15″ (80mm) outlet allows you to run either stock or aftermarket catback systems
- Complete bolt-on means no cutting and will bolt to the factory location
- 02 sensors in OEM locations with no jumpers needed
- Mandrel bent tubing fir the best flow




