These catalytic converters are designed for the ScienceofSpeed Twin Turbocharger System. These use the same converters as the ScienceofSpeed Factory-Replacement Converters for Forced Induction, but include additional length of tubing and flanges to connect directly to the ScienceofSpeed Twin Turbocharger System downpipes.
For applications with greater than 475 BHP, please consider the ScienceofSpeed Ultra-High Output Exhaust System.