Jet Performance 81101 Features: Add Up To 26 Horsepower Plug-In Installation Dynamic Spectrum Tuning Of The Air/Fuel Ratio Improved Performance And Mileage Designed To Burn Fuel At Peak Efficiency Stock Or Mildly Modified Vehicles Use Of Mid-Grade Or Better Is Recommended 50 State Smog Legal Height: 2.50 Width: 7.50 Length: 7.50 Weight: 1.00 lbs