ALPHA GT-R Cast Plenum /

The Alpha Performance R35 GT-R Cast Aluminum Intake Manifold Plenums are designed by AMS for efficiency and power. They produce more HP and torque across the entire power band compared to other leading cast aluminum GT-R intake manifolds. Features include larger, perfectly molded cast aluminum plenums and optimally designed CNC billet aluminum velocity stacks for even air distribution and reduced turbulence. Each manifold is matched to its upper and lower running section with tight tolerances and dowel locating pins for perfect alignment and smooth airflow. The design underwent rigorous testing (0-50psi in high heat, burst tested over 150psi). For high-powered GT-Rs, provisions for an additional Alpha fuel rail support over 2000+ horsepower, with optimized injector spray angles. Optional Alpha Billet Big Bore Throttle Bodies are available for cars exceeding 800HP. Customers can choose from various anodized finishes.