Banks Power Jeep Trucks: (Gas ’91 - 02 2.5L) Exhaust Monster, Single out the back, 2.5L I-4 (07-03 Wrangler (TJ)) 4.0L I-6 (1991-95 Wrangler (YJ), 1997-06 Wrangler (TJ), 2004-06 Wrangler Unlimited) User Manual