Features: 1.Throttle body spacer kit, perfectly fit for Wrangler 1987?1995 YJ L6 4.0L. 2.Provide better throttle response. Brings 4?6 horsepower, and increases gas mileage up to 2?3mpg more. 3.Smooth side design of the gasket helps atomize the fuel into an air mixture, improving performance and fuel economy. 4.Made of high quality CNC aluminum alloy material, high strength, corrosion resistant and durable. 5.The installation is simple, does not require complicated operations and tools. Specification: Item Type: Throttle Body Spacer_x000D_ Material: Aluminum Alloy_x000D_ Fitment:_x000D_ Fit for Wrangler 1987-1995 YJ L6 4.0L_x000D_ Fit for Wrangler 1991-1995 L6 4.0L _x000D_ Fit for Cherokee(XJ)._x000D_ Fit for Cherokee (Xj) 1991-1999 L6 4.0L._x000D_ Fit for Grand Cherokee (WJ) 1999-2004 L6 4.0L_x000D_ Fit for Cherokee XJ 2.5L. 91-02 _x000D_ Fit for Cherokee XJ 2.5L models 1991 to 2002 _x000D_ Fit for Wrangler 2.5L models 1991 to 2002 _x000D_ Fit for Wrangler TJ and Wrangler YJ._x000D_ Fit for Grand Cherokee / Cherokee / Wrangler & 2.5L, 4.0L 91-2004 _x000D_ Fit for Cherokee (XJ) 1991-1999 L6 4.0L_x000D_ Fit for Grand Cherokee (WJ) 1999-2004 L6 4.0L_x000D_ Fit for Cherokee XJ 2.5L. 91-02 _x000D_ Fit for Cherokee XJ 2.5L models. 1991 to 2002 _x000D_ Fit for Wrangler 2.5L models 1991 to 2002 _x000D_ Fit for Wrangler TJ and Wrangler YJ._x000D_ Fit for Cherokee XJ, 4.0L 91-99 _x000D_ Fit for Grand Cherokee WJ, 4.0L 99-04 _x000D_ Fit for Wrangler YJ, 4.0L 91-95_x000D_ Fit for Wrangler LJ, 4.0L 97-06 _x000D_ Fit for WRANGLER (87-95 YJ) 1991-1995 L6 4.0L_x000D_ Fit for WRANGLER (97-06 LJ) 2004-2006 L6 4.0L_x000D_ Fits the 4.0L from 1987-2006, or 2.5L from 1992-2002 PackageList: 1 x Spacer 2 x Gasket 7 x Screw 7 x Spring Spacer 3 x Round Spacer