Tanabe Concept G Blue Exhaust System Tanabe took turbocharged car exhaust tuning one step further in the development of the complete turbo back exhaust, CONCEPT G BLUE This complete system includes a full SUS304 stainless downpipe and cat delete pipe that have thicker construction to withstand the heat of extreme exhaust gas temperatures. The catback portion of this system features lightweight SUS304 piping with a specialized full Inconel tip. This system maximizes flow efficiency for the largest power gains and will greatly benefit vehicles running higher amounts of boost. This system is capable of handling the flow needs of extremely modified vehicles. Tailored for turbo car driver who enjoys boost.