APR's front mount intercooler kits need at least 13" of vertical clearance to be installed properly. See image showing vertical dimension. See notes below relating to your specific application:
- The Passat will require a different lower valance but will not need any modifications made to the bumper itself.
- The B5 A4 application will require a larger front bumper cover; the B5 S4 bumper cover or some aftermarket bumper covers are the smallest that will work.
APR TESTING: The conditions of one test that was performed is as follows: at 20 psi of pressure with a vehicle speed of 70 mph, and an elevation of approximately 500 feet above sea level. Under these conditions the internal flow was measured at 720cfm. Also at those conditions, with an input temp of 240º F, the intercooler was quite effective; cooling the output air to 126º F. While doing this, the intercooler measured a pressure drop of only .58 psi.
Equally as impressive with the APR intercooler was the external pressure drop (the amount of air pressure behind the intercooler) of only 1.01 psi. This helps to allow airflow to other critical parts of the car such as the radiator and A/C condenser. While the internal pressure drop is important, the external pressure drop is often overlooked. Most other intercoolers commonly cause 1.5 to 2.0 pounds of pressure drop, hindering the radiator from effectively doing its job of cooling the engine.