Airaid PowerAid Throttle Body Spacer Features: Aircraft Quality Billet 6061-T6 Aluminum Incl. Gaskets; Hardware; Precision Brackets Installs In Less Than 1 Hour No Drilling Or Cutting Required Improves Low End Torque And Throttle Response Maximize Fuel Efficiency Provides Stronger Mid-Range Power Height: 1.00 Width: 5.00 Length: 9.00 Weight: 1.70 lbs Vehicle Type: 2715 Fitment: 2004/Chevrolet/Impala/SS Sedan 4-Door/3.8L 3800CC 231Cu. In. V6 GAS OHV Supercharged::CARB E.O. D-609^^2004/Chevrolet/Impala/LS Sedan 4-Door/3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated::CARB E.O. D-609^^2004/Chevrolet/Impala/Base Sedan 4-Door/3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated::CARB E.O. D-609^^2003/Chevrolet/Impala/LS Sport Sedan 4-Door/3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated::CARB E.O. D-609^^2003/Chevrole...