LSXHR 103mm Intake Manifold for LS3 Rectangular Port

The LSXHR™ 103mm Intake Manifold for LS3 Rectangular Port Applications features:

• Standard "tall" stacks are interchangeable with separately purchased "medium" and "short" stacks to find the most powerful combination
• Polymer construction is lightweight and high strength to eliminate power-robbing heat soak commonly found in aluminum intake manifolds
• Average 30 HP gain between 5,000 and 7,500 RPM over competitors' high ram intake manifolds
• Rated for up to 45psi of continuous pressure
• Compound fuel injector angle aims spray pattern for ideal atomization, resulting in maximum power production and superior drivability
• Reversible top allows for forward- or firewall-facing throttle body installations
• Two nitrous nozzle bosses per runner for clean and easy direct port system installations
• 103mm Throttle body opening can be ported to 105mm