1、Improves torque performance and increases fuel economy. 2、Made of premium aluminum alloy, solid and corrosion resistant that it ensures its durability. 3、Easy to install, but still recommended to be operated by professionals. 4、Perfect replacement for Jeep Wrangler 2.5L 4.0L 1987-2004 YJ XJ WJ. 5、Includes all hardware. Features: Improves performance and increases fuel economy. Made of premium aluminum alloy, solid and corrosion resistant that it ensures its durability. Easy to install, but still recommended to be operated by professionals. Perfect replacement for Wrangler 2.5L 4.0L 1987-2004 YJ XJ WJ. Includes all hardware. Specifications: Color: Black & Silver Material: Alluminum Alloy Condition: New Package Size: 14.5 * 10 * 3cm Package Weight: 370g Applications: Replacement for Wrangler YJ L6 4.0L 1987-1995 Replacement for Wrangler L6 4.0L 1991-1995 Replacement for Cherokee(XJ) L6 4.0L 1991-1999 Replacement for Grand Cherokee (WJ) L6 4.0L 1999-2004 Replacement for Cherokee XJ 2.5L 91-02 Replacement for Wrangler 2.5L models including Wrangler TJ and Wrangler YJ 1991-1992 Replacement for Grand Cherokee/Cherokee/Wrangler & 2.5L, 4.0L 91-2004 Replacement for Cherokee(XJ) 1991-1999  L6 4.0L Replacement for Grand Cherokee (WJ) L6 4.0L 1999-2004 Replacement for Cherokee XJ 2.5L 91-02 Replacement for Wrangler 2.5L models including Wrangler TJ and Wrangler YJ 1991 to 2002 Replacement for Cherokee XJ 4.0L 91-99 Replacement for Grand Cherokee WJ 4.0L 99-04 Replacement for Wrangler YJ 4.0L 91-95 Replacement for Wrangler LJ 4.0L 97-06 Replacement for Wrangler(87-95 YJ) L6 4.0L 1991-1995 Replacement for Wrangler(97-06 LJ) L6 4.0L 2004-2006 Package List: 1 * Throttle Body Spacer 1 * Set of Accessory Notes: 1.No installation guides are included. We highly recommend to seek professional installation. 2.Please allow difference due to manual measurement. 3.Please check the car model before purchasing. 1 * Throttle Body Spacer 1 * Set of Accessory Notes: 1.No installation guides are included. We highly recommend to seek professional installation. 2.Please allow difference due to manual measurement. 3.Please check the car model before purchasing.