Mass Air Systems

Blox Racing MAP Type A Bypass Valve Throttle Body Mounted

The BLOX Racing MAP Bypass Valve is designed for use with forced-induction applications. The MAP Bypass Valve completely blocks boost from reaching the MAP sensor, thus simulating a wide-open...

Blox Racing MAP Type B Bypass Valve Firewall Mounted

The BLOX Racing MAP Bypass Valve is designed for use with forced-induction applications. The MAP Bypass Valve completely blocks boost from reaching the MAP sensor, thus simulating a wide-open-throttle...

Blox Racing MAP Type C Bypass Valve Throttle Body Mounted

The BLOX Racing MAP Bypass Valve is designed for use with forced-induction applications. The MAP Bypass Valve completely blocks boost from reaching the MAP sensor, thus simulating a wide-open-throttle...

Blox Racing MAP Type D Bypass Valve Intake Manifold Mounted

The BLOX Racing MAP Bypass Valve is designed for use with forced-induction applications. The MAP Bypass Valve completely blocks boost from reaching the MAP sensor, thus simulating a wide-open-throttle...

GrimmSpeed MAF Block Off

When you upgrade your Subaru to a Blow Through System you will need a way to block off the location where the old MAF Sensor was located, well GrimmSpeed has the answer. GrimmSpeed MAF Block Off Plate...