Intercooler For Audi Q7 4M 2.0 TFSI Nissens 4M0145805C 4M0145805D 4M0145805E

Air-to-Air Intercooler : Uses ambient air to cool the compressed air as it passes through the intercooler. Cooling the air increases its density, allowing more oxygen into the engine for better combustion and improved performance.

eBay