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...

THROTTLE RETURN SPRING KITS FUEL LINE FITTINGS CARBURETOR SPACERS & ADAPTERS FUEL SYSTEM EQUIPMENTApplication:1966-1969 CHEVROLET 427 BIG BLOCK 1970-2000 CHEVROLET 454 BIG BLOCK 1985-2010...

The nature of a vacuum pump is to remove air, blow-by gasses and other contaminants from the crankcase of an engine. The vacuum pumps ability to remove the air in the crankcase results in overall...