This Solo Performance Redline Off Road downpipe is a direct replacement for the stock Saturn Redline converter. Solo’s off road downpipe comes with all necessary hardware and is a complete bolt on piece. No welding necessary. Since this pipe has no converter it will trigger an engine light and is for use off road only. The stock Redline converter is a 600 cell extremely restrictive converter. A big bottleneck is created right after the turbo when the exhaust gasses hit the stock converter. Changing the stock cat for the Solo Off Road Downpipe opens up the flow using a free flow 3” mandrel bent unit. The flow, sound, throttle response, HP and torque are massively increased with this Solo Downpipe. Note: there are computer tunes that can turn off the engine light and further take advantage of this superior flow.