FAST LSXHR FAST-RAM 103mm Intake Manifold - Black for 2007-2017 GM Rectangular Port LS (MPN 146106)

Fits select 2007-2017 Cadillac Escalade, Chevrolet Camaro/Corvette/Silverado/SS/Suburban/Tahoe, GMC Sierra/Yukon, Hummer H2, and Pontiac G8 models with rectangular port engines.

The FAST LSXHR FAST-RAM Intake Manifold is the industry’s first polymer tunnel ram-style manifold designed for maximum performance in both naturally aspirated and high-boost applications. Rated for up to 45psi of continuous pressure, this manifold is engineered to withstand the rigors of forced induction while virtually eliminating the power-robbing heat soak common in aluminum alternatives. The polymer construction provides high strength and a lightweight profile, while the tunnel ram design has shown average gains of 30 horsepower between 5,000 and 7,500 RPM.

Equipped with removable velocity stacks of various lengths, racers can fine-tune the intake runner combination to optimize the power band for their specific application. The manifold features a reversible top for flexible forward or firewall-facing throttle body mounting and includes two nitrous nozzle bosses per runner for clean direct-port installations. A compound fuel injector angle ensures ideal spray atomization for improved drivability and peak power production.

• Manufacturer Part Number: 146106
• Throttle Body Opening: 103mm (port-matchable to 105mm)
• Pressure Rating: 45psi continuous (boost-ready)
• Material: High-strength, heat-resistant polymer
• Configuration: Tunnel ram-style with removable internal stacks
• Compatibility: Gen III/IV LS Rectangular Port heads
• Installation Features: Reversible plenum top and dual nitrous bosses per runner