PERRIN Front Mount Intercooler users can now get a more accurate charge temperature reading and run a VTA BOV with no problems!  Instead of measuring the Mass Air Flow (MAF) and air temperature before the turbocharger, the Perrin Performance Blow-Thru boost tube moves the mass airflow sensor to the boost tube before the throttle body.  The placement of this does many good things like allowing your ECU to read the actual charge temperature that the engine sees, which eliminates any need for a Cold air intake.  Also use our Vent to Atmosphere (VTA) Blow off valve without running rich between shifts, or without idle problems.  

The Blow-Thru boost tube also is designed with the BigMAF Intake in mind. Tuners around the world are familiar with this larger than stock MAF housing. This allows for the stock ECU to read more airflow, which in turn allowing the tuner to tune beyond 550WHP! This also means the Blow-Thru boost tube needs to be tuned after installed. This part will not function correctly when installed on a stock tuned ECU.