Carbon pTR LS3/LS7 Carbon Fiber Tunnel Ram Intake Manifold

Build a lighter, cooler, and more powerful LS induction system with the Carbon pTR Intake Manifold—a high-performance modular tunnel ram designed for serious LS-powered street cars, hot rods, resto-mods, race trucks, drag cars, and marine applications.

The Carbon pTR combines a lightweight carbon fiber upper plenum with a durable PA6GF30 glass-reinforced nylon lower manifold. This advanced construction delivers exceptional strength, reduced heat soak, and approximately 10 pounds of weight savings compared with many traditional aluminum tunnel ram intake manifolds.

With interchangeable velocity stacks, multiple sensor and accessory ports, hidden valley packaging, and support for LS3- and LS7-style cylinder heads, the Carbon pTR gives builders the flexibility to configure the intake around their exact engine combination.

Tune the Runner Length to Match Your LS Engine

Runner length plays a major role in determining where an engine produces torque and horsepower. The Carbon pTR’s modular velocity stack system allows you to adjust the intake runner length to complement your camshaft, cylinder heads, exhaust system, gearing, and intended RPM range.

The manifold ships with the longer velocity stack configuration, while optional medium and short stacks are available separately.

Longer Intake Runners

Longer runners are designed to improve:

• Low- and mid-range torque
• Throttle response
• Street drivability
• Acceleration through the middle of the RPM range

Shorter Intake Runners

Shorter runners are better suited for:

• High-RPM LS engine combinations
• Drag racing applications
• Large-camshaft engines
• Maximum top-end horsepower

Different runner lengths may also be combined to help smooth or reshape the engine’s torque curve for specialized applications.

Carbon Fiber and Polymer Construction

The upper plenum is manufactured using five layers of high-strength carbon fiber, a foam-core flange, and high-temperature epoxy. This construction provides an excellent strength-to-weight ratio while helping reduce heat transfer into the incoming air charge.

The lower runner assembly is manufactured from PA6GF30 glass-filled nylon, providing strength, reduced weight, and resistance to heat soak from the cylinder heads.

Accessory ports, sensor provisions, and supporting connections are packaged inside the engine valley for a cleaner and more organized installation.

Together, the carbon fiber and polymer components provide approximately 10 pounds of weight savings compared with competitive aluminum tunnel ram intake manifolds.

Built for Boosted, Nitrous, and High-Horsepower LS Applications

The Carbon pTR is not limited to naturally aspirated combinations. The manifold has been tested at more than 50 PSI, making it suitable for high-performance turbocharged and supercharged LS engine builds.

Integrated nitrous nozzle bosses are located on both the outboard and valley sides of every runner, providing a total of 16 nitrous provisions for custom direct-port nitrous installations.

The manifold also includes provisions for three different injector body lengths, giving builders more flexibility when selecting injectors and configuring the fuel system.

Key Features

• Fits LS3- and LS7-style cylinder heads
• Modular velocity stack design
• Available runner lengths of 6.5, 8.0, and 9.0 inches
• Raised velocity stack runner entries
• Carbon fiber upper plenum
• Five-layer carbon fiber construction
• Foam-core plenum flange
• High-temperature epoxy construction
• PA6GF30 glass-filled nylon lower manifold
• Lightweight design with reduced heat soak
• Approximately 10 pounds lighter than many aluminum tunnel ram manifolds
• 10 to 11.4-liter plenum volume, depending on velocity stack configuration
• Forward-facing 105mm throttle body flange
• Compatible with 90mm to 105mm throttle bodies
• Two MAP sensor locations at the front and rear
• Two 1/4-inch NPT accessory ports
• One 1/2-inch NPT accessory port
• Suitable for PCV, purge solenoid, brake booster, IAT, and other accessories
• Tested to more than 50 PSI
• 16 integrated nitrous nozzle bosses
• Supports three injector body lengths
• Includes molded intake port, plenum, and throttle body seals
• Includes stainless steel installation hardware
• Intake manifold can be reversed on the engine
• Anodized billet throttle body flange
• Red and black throttle flange colors available
• Hidden valley sensor and accessory packaging

Throttle Body Compatibility

The Carbon pTR features a 105mm forward-facing throttle body flange designed to accept throttle bodies ranging from 90mm to 105mm.

The intake manifold can also be reversed on the engine, giving builders additional flexibility for custom intercooler piping, radiator clearance, engine swaps, and unique engine bay layouts.

Sensor and Accessory Ports

The Carbon pTR includes multiple ports for common engine accessories and sensors:

• Two MAP sensor locations positioned at the front and rear
• Two 1/4-inch NPT ports for PCV, purge solenoid, or similar accessories
• One 1/2-inch NPT port for a brake booster, intake air temperature sensor, or another accessory

The lower manifold packages these connections within the valley to maintain a clean, professional appearance.

Nitrous and Fuel System Provisions

Each intake runner includes nitrous nozzle bosses on both the outboard and valley sides, providing 16 total nitrous provisions.

The manifold also supports three different fuel injector body lengths, allowing greater flexibility when building naturally aspirated, boosted, or nitrous-assisted LS combinations.

Optional PD ultralight billet -8 fuel rails are available separately.

LS3-Style Rectangular Port Compatibility

The Carbon pTR is compatible with LS3-style rectangular-port cylinder heads and applications including:

• LS3
• L76
• L99
• L98
• L77
• LY6
• L96
• LZ1
• LY2
• L20
• LMF
• LH6
• LY5
• LMG
• LC9
• LH8

Always verify cylinder-head port style, hood clearance, throttle body fitment, fuel rail compatibility, and accessory placement before ordering.

What’s Included?

• Carbon fiber upper intake plenum
• PA6GF30 glass-filled nylon lower runner assembly
• Long velocity stack configuration
• Molded intake port seals
• Molded plenum seals
• Molded throttle body seal
• Stainless steel installation hardware
• Anodized billet throttle body flange
• Includes purpose-built -8AN fuel rails and mounting hardware to finish your fuel system the right way

Optional Components

The following components are sold separately:

• Medium-length velocity stacks
• Short velocity stacks

Important Fitment Notice

This intake manifold is not designed to fit underneath the factory hood of most late-model vehicles.

The Carbon pTR is best suited for:

• Hot rods
• Resto-mods
• Drag cars
• Off-road race trucks
• Race boats
• Custom LS engine swaps
• Competition vehicles
• Builds with modified or open hood clearance

Professional installation, tuning, and verification of fuel-system compatibility are strongly recommended.

Upgrade Your LS Engine with a Lightweight Modular Tunnel Ram

The Carbon pTR Intake Manifold gives serious LS builders the performance benefits of a tunnel ram with the added advantages of carbon fiber construction, reduced heat soak, lower weight, adjustable runner lengths, boost capability, and extensive fuel and nitrous provisions.

Whether you are building a high-RPM naturally aspirated LS3, a turbocharged LS engine, a supercharged hot rod, or a direct-port nitrous race combination, the Carbon pTR delivers the flexibility needed to build the intake system around your performance goals.

Order your Carbon pTR LS3/LS7 Carbon Fiber Tunnel Ram Intake Manifold from Fuzera High Garage today.