aFe Power Silver Bullet Throttle Body Spacer Features: Precision Machined From T-6061 Billet Aluminum Special Helix Design Produces Increased HP/Torque/Throttle Response Fits With aFe Intakes Increased Air Volume For Better Performance No Annoying Whistle Limited Lifetime Warranty Height: 10.00 Width: 3.00 Length: 7.00 Weight: 1.00 lbs Vehicle Type: Throttle Body Spacer Fitment: 2011/Jeep/Wrangler/Unlimited Sport Sport Utility 4-Door/3.8L 3778CC 231Cu. In. V6 GAS OHV Naturally Aspirated::CARB E.O. D-550-11^^2011/Jeep/Wrangler/Unlimited Sahara Sport Utility 4-Door/3.8L 3778CC 231Cu. In. V6 GAS OHV Naturally Aspirated::CARB E.O. D-550-11^^2011/Jeep/Wrangler/Unlimited Rubicon Sport Utility 4-Door/3.8L 3778CC 231Cu. In. V6 GAS OHV Naturally Aspirated::CARB E.O. D-550-11^^2011/Jeep/Wrangler/Unlimited 70th Anniversary Sport Utility 4-Doo...