BBK Phenolic Manifold Spacer Kit - (GT-40, Cobra).

As One Of The Most Affordable Bolt-Ons For Today’s Automotive Enthusiasts, BBK’s Phenolic Manifold Spacer Kits Have Proven To Be A Great Way To Increase Performance. CNC Machined From A Custom Phenolic Fiber Material, These Spacer Kits Increase Power By Dramatically Reducing The Transfer Of Heat From The Lower To Upper Intake Manifold. This In-Turn Produces Lower Inlet Air Temperatures Which Results In Added Horsepower And The Ability To Add More Timing Advance With Less Detonation. Each Intake Manifold Spacer Kit model has been designed & Dyno Tested At The BBK Headquarters In Southern California To Maximize Performance At A Low Cost To The Customer