1991-1999 Jeep Wrangler 4.0L Stainless Steel Header with Collector and Hardware Will not directly plug into

Will not directly plug into GM column but can be connected by individually connecting wires from harness to their respective circuits

Get up to four degrees of timing adjustment with Speedmaster adjustable timing pointers

These zinc plated cooling pans from Speedmaster give you up to 15 percent cooler transmission temperatures

The Speedmaster GM LS1/LS2/LS6 Modular Hi-Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet-metal for high-performance applications where induction system height is not limited

This new setup ensures a more 'crisp' shift

1991-1999 Jeep Wrangler 4.0L Stainless Steel Header with Collector and Hardware Will not directly plug into