1998-2002 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 installation photo with measurement showing proper exhaust clearance.