Review on ATP Automotive Graywerks 106001 Engine Intake Manifold: High-Performance Product for Enhanced Engine Efficiency by Daniel Reeder

I've looked at ALL the intake manifold kits available and this one turned out to be the best choice based on YouTube reviews and mechanics commented here by Revain. This header was definitely thicker overall and had more reinforcement around the mounting holes than the General Motors part number. The only issue I had was the instructions that suggested putting a gasket on the bottom air intake before installing the camera. It made no sense. The spacer must first be inserted into the top of the chamber to allow the vent tube to align within it. On the other hand, I was very impressed with the quality of the product.