Untitled documentFor maxiumum exhaust flow and power gain, the stock catalytic converter must be replaced with a free flowing test pipe. T1R offers the Racing Converter, a high flowing resonated test pipe, for this purpose only. It is a fully plug and play unit; it is a direct fit replacement and comes with all the necessary sensor holes and T1R O2 Fix Version 2.0. When installed in conjuction with header and exhaust, a 3-5whp gain can be expected. This specific system is designed so that you can reinstall the stock catalytic convertor heatshield and regain the stock cat-like look. Like all T1R exhaust products, the Racing Converter is made from SUS304 aircraft grade stainless steel and features TIG welded construction. Recommended for track and race use only.