Motordyne 5/16" Basic Plenum Spacer (MD - 516"B) 1401 perfect for track days and

perfect for track days and spirited driving

It replaces your stock air intake tube with a tube that is specially shaped for accelerated airflow

The Snow Performance LS3 34mm Fuel Rail Bracket set includes four brackets designed to securely mount 34mm fuel rails compatible with LS3 applications

CSF went through several different prototypes using cores of varying thicknesses

For vehicles equipped with Secondary Air Injection

Motordyne 5/16" Basic Plenum Spacer (MD - 516"B) 1401 perfect for track days andAt the optimum height and yielding the best overall gains, the Motordyne 5 16 plenum spacer outperforms the competition and conveniently keep your engine cover and strut bar in place. This stealth modification adds 11HP 13HP and is the simplest to install. All Motordyne melt proof plenum spacers come with pre attached, high quality gasketFeatures: Gains: 11HP 13HP