BBK Phenolic Manifold Spacer Kit - 3/8" Thick BR3000 2000-2011 GMC Yukon XL 2500

2000-2011 GMC Yukon XL 2500

1979-1989 GMC P3500

1988-1998 Chevrolet C2500

Race engine RPM differs greatly from street engines

1984-1986 Lincoln Continental

BBK Phenolic Manifold Spacer Kit - 3/8" Thick BR3000 2000-2011 GMC Yukon XL 2500BBK 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