Our 3"5 sport intercoolers are direct replacement and do not require expensive aftermarket hoses. They are hand crafted in house and pressure tested to 35 PSI. We use only high quality Bell cores "MADE IN AMERICA" along with custom end tanks that come with our Cnc machined fittings for perfect seal with the stock intercooler hoses. We also offer 2.5" end tank inlets/outlets for those using aftermarket silicone hoses. Our dyno showed 20 rwhp just swapping the intercoolers. Lower intake temperatures prevent detonation, stop the car from pulling timing, and produce more horse power.