BBK Phenolic Intake Manifold Spacer - 3/8" Gauges & Data Acquisition Rear Axle Nut

Rear Axle Nut

170 Liters

50-inch bolt circle using a C4 automatic transmission

MegaShifter right hand drive

2-1/2 in ID Springs

BBK Phenolic Intake Manifold Spacer - 3/8" Gauges & Data Acquisition Rear Axle NutBBK Performance phenolic intake manifold spacer kits have proven to be a great way to increase performance for late model Ford EFI owners. Each Phenolic spacer is CNC Machined from 3 8 inch phenolic material, these manifold spacer kits increase power by reducing the transfer of heat from the lower manifold to upper air intake manifold. This produces lower air intake temperatures which results in added horsepower and the ability to add more timing