2201 - 1993-2002 GM F-Body Tunnel Mounted T/A, Loop, Stock Exhaust & Kook LT's1998 2002 Models This unit is designed to clear with factory exhaust systems and vehicles running shorty headers and y pipe that bolt into existing location of stock manifolds. It will also clear y pipes that bolt to factory exhaust manifolds. Torque arm will clear Kooks long tube headers with Kooks y pipe. It will also clear similar tight fitting long tube header set ups. This set up may not clear all lower hanging long tube headers. Please see