BBK Phenolic Manifold Spacer Kit - 3/8" Thick Square Steel Tubing Tubing aerodynamic design features an advanced

aerodynamic design features an advanced ventilation system with 14 air intake and extraction channels designed to maximize cooling and a double screen anti-fog (DSAF) insert to prevent fogging in rain conditions

When a grease fitting is required

1992-1999 Chevrolet C2500 Suburban

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BBK Phenolic Manifold Spacer Kit - 3/8" Thick Square Steel Tubing Tubing aerodynamic design features an advancedBBK 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