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Top Street Performance

GM LS Gen IV Rectangle Port Carbon Fiber Hi-Rise Intake Manifold

GM LS Gen IV Rectangle Port Carbon Fiber Hi-Rise Intake Manifold

SKU: 81634

$4,400.00
$4,400.00 $5,000.00
Shipping calculated at checkout.

Out of stock

Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Fits LS3 & rectangle-port LS engines
  • Hi-rise runners maximize airflow
  • Lightweight carbon fiber construction
  • Supports high-horsepower EFI builds

Description

Upgrade your LS-powered build with the Top Street Performance GM LS Gen IV Rectangle Port Carbon Fiber Hi-Rise Intake Manifold. Designed for LS3, L92, L99, LY6, L76, and other GM Gen IV rectangle-port LS engines, this LS carbon fiber intake manifold delivers exceptional airflow, lightweight construction, and high-RPM performance for serious street, drag racing, track, and LS swap applications.

Constructed from premium carbon fiber with precision-machined aluminum flanges, this LS rectangle port intake manifold helps reduce weight while minimizing heat soak compared to traditional cast aluminum intake manifolds. The hi-rise runner design is engineered to maximize airflow efficiency and support increased horsepower potential, making it an excellent choice for naturally aspirated, turbocharged, supercharged, and nitrous-assisted LS engine combinations.

Designed for high-performance EFI applications, this LS3 hi-rise intake manifold features a large throttle body opening, removable top design, integrated fuel rail provisions, and compatibility with modern electronic fuel injection systems. The modular construction simplifies installation, tuning, maintenance, and future upgrades while providing a clean, professional appearance.

Whether you're upgrading an LS3 intake manifold, building a boosted 6.0L combination, maximizing airflow on a 6.2L LS build, or assembling a dedicated race engine, this carbon fiber LS intake manifold delivers the airflow capacity, weight savings, and horsepower potential serious LS enthusiasts demand.

 

Carbon Fiber Intake Manifold Technology
The Top Street Performance LS Gen IV Rectangle Port Carbon Fiber Hi-Rise Intake Manifold is engineered for maximum airflow, reduced weight, and premium engine bay appearance. Constructed from lightweight carbon fiber with CNC-machined aluminum flanges, this intake manifold helps reduce heat soak while providing the strength required for demanding street and racing applications. The removable top design allows easy access for tuning, maintenance, and future upgrades.

High-Horsepower Performance Benefits
The hi-rise runner design is optimized to increase airflow efficiency and support high-horsepower engine combinations. Compared to lower-profile intake designs, the taller runner configuration helps maximize airflow potential at higher RPM levels, making this intake manifold an excellent choice for drag racing, track builds, LS swaps, and performance street vehicles.

Specs

Basic Operating RPM Range 1,500-9,000 RPM
Color Black
Deck Height Standard
Fuel Injection Style Multi-port Fuel Injection
Fuel Injector Stye Provision 2.55 in. LS1 style
Fuel Rail Color Black
Fuel Rail Finish Black
Fuel Rail Fitting Thread Diameter 10 ORB
Fuel Rail Material Aluminum
Fuel Rails Included Yes
Fuel System Type Electronic Fuel Injection
Gasket Or Seal Included Yes
Grade Type Performance
Intake Port Shape Rectangle
Manifold Absolute Pressure Sensor Port Included Yes
Manifold Absolute Pressure Sensor Port Style Gen IV 3-bar
Manifold Finish Natural
Material Carbon Fiber
Mounting Hardware Included Yes
Mounting Hole Quantity 10
Removable Runners Yes
Removable Throttle Body Flange No
Removable Top Yes
Supplemental Boss Quantity 2
Throttle Body Bore Size 102.200 mm

Engine Fitment

COMPATIBLE WITH
GM Gen IV Rectangle Port LS Engines
6.0 L / 364 in3 (LY6, L96 – rectangle port only)
6.2 L / 376 in3 (LS3, L92, L99)

COMMON VEHICLE APPLICATIONS
• Chevrolet Camaro LS3 builds
• Chevrolet Corvette LS3 applications
• Chevrolet Silverado performance builds
• Chevrolet C10 LS swaps
• Chevrolet Chevelle LS conversions
• Pontiac GTO LS projects
• Custom race cars and restomods

NOTES
• Fits GM Gen IV rectangle-port LS cylinder heads
• Designed for EFI applications only
• Carbon fiber intake manifold construction
• Includes fuel rail provisions
• Removable top design for tuning and maintenance access
• Compatible with high-performance naturally aspirated and boosted combinations
• Verify throttle body, injector, fuel system, and hood clearance before installation
• Not compatible with cathedral-port cylinder heads

Q&A

Will this intake manifold fit an LS3 engine?
Yes. This intake manifold is designed for LS3 and other GM Gen IV rectangle-port LS engines.

Will this intake fit an L92 engine?
Yes. The manifold is compatible with rectangle-port L92 cylinder head applications.

What is the advantage of a hi-rise intake manifold?
A hi-rise intake manifold utilizes taller runners designed to maximize airflow and horsepower potential, making it ideal for high-performance street, drag racing, and competition applications.

Will this intake fit cathedral-port LS engines?
No. This manifold is designed specifically for rectangle-port LS cylinder heads and is not compatible with cathedral-port applications.

Is this intake suitable for turbocharged applications?
Yes. The high-flow design makes it suitable for naturally aspirated, turbocharged, supercharged, and nitrous-assisted LS engine combinations.

What are the benefits of carbon fiber construction?
Carbon fiber helps reduce weight, minimize heat soak, and provides a premium appearance while supporting high-performance engine combinations.

Is this intake designed for EFI applications?
Yes. This intake manifold is designed for electronic fuel injection systems.

Will this intake improve horsepower?
The hi-rise runner design is engineered to improve airflow efficiency and support higher horsepower levels when combined with appropriate engine modifications.

Emissions Notice

This product is legal for off road use and non pollution controlled vehicles (1965 & older); however, it has not been tested or approved by the California Air Resources Board (CARB) for highway vehicles in the state of California. By purchasing this product, buyer agrees it will not be used on pollution controlled vehicles in California, or in a state with similar emissions regulations.