Haul more in better style with enhanced QX-4 Intercooler Kit. The air rushing into the engine is hot, but with an Intercooler Kit, it will be colder. These QX-4 Intercooler Kit are very popular. Colder air is denser than hot air and an Intercooler Kit helps turbo and supercharged vehicles to produce more horsepower. Take to the road with new QX-4 Intercooler Kit. An Intercooler Kit makes a big impression on others. Show off your new Intercooler Kit at your next meet.