aFe 46-20128 BladeRunner 2-1/2" Intercooler Tube (Non-CARB Compliant) Powder-coated for heat resistance, 3-Piece tube set for perfect fitment and maximum flow, These Hot -Side Tubes direct heated air from the turbos to the intercooler with less restriction 2.5" Mandrel-Bent Powder-Coated Stainless Steel, for improved flow to intercooler; this tube upgrade combo outflowed the stock tube by 18 percent and resulted in a maximum gain of 9 horsepower and 11 lb. x ft. of torque as verified by in-house Dyno These intercooler tubes works with aFe or OE Intercooler, High quality clamps and silicone couplings Included for a perfect fit and strength All necessary hardware included for a hassle-free installation, This system is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles Manufactured and assembled in the USA; This item is not for sale in California/Non CARB compliant