Prosport Performance Green/White 52mm Mechanical Boost Gauge Vehicle Model_Forester giving the option for separate

giving the option for separate camber and caster adjustment

Note: Replacement for ACT SB4 part numbers

View the 21-477C vehicle applications to determine the legal status for each vehicle

They were known as Type 1 or Type 2

Dished head for added weight savings and increased valve control at high rpm

Prosport Performance Green/White 52mm Mechanical Boost Gauge Vehicle Model_Forester giving the option for separatePart #: PSR 216BFWGBOSM. PSI If your vehicle is supercharged or turbocharged then this gauge is simply a must have. For peak performance you need to know how much boost you are making at maximum RPM's. Now you can track your peak boost as you modify your ride! ( 30~30 PSI includes Mounting hardware, Tubing kit, T Adaptor, Hood and Instructions) This item is non application specific. Please verify compatibility before purchase. May require some