Name: GM LS1, LS2, LS6 - Individual Throttle Body Kit (ITB) Intake - Cathedral Port LS Manifold
Brand: RHD Engineering
SKU: ITB-RHD-LS1OS
Price: 2699.0 USD
Availability: InStock

GM LS1, LS2, LS6 - Individual Throttle Body Kit (ITB) Intake - Cathedral Port LS Manifold

$2,699.00

Quantity

Size

Short Trumpets (2 inch/50 mm)

Medium Trumpets (3 Inch/75mm)

[NEW] Tall Trumpets (7inch/180mm)

World Wide Shipping available.

Assembled & Customised to order.

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ITB Intake Manifold Kit for all Gen 3 & Gen 4 LS Engines with Cathedral Port Heads.

Fits LS1, LS2, LS6, LM4, LM7, LQ4, LQ9, LY2, LY5 etc.

Also known as Velocity Stacks or Trumpets.

Performance

50+WHP (~60-65HP AT FLYWHEEL) INCREASE OF OEM INTAKE
SMOOTH LOW-RPM DRIVABILITY - SOME CUSTOMERS HAVE BEEN DAILY DRIVING FOR 3 YEARS+
7 INCH (180mm) MANIFOLD RUNNER LENGTH FOR IMPROVED TORQUE
AMAZING DEEP INDUCTION SOUND.
NITROUS COMPATIBILITY VIA TOP MOUNT PORTS. CAN ALSO BE USED FOR E85 OR RACE FUELS FOR ADDITINAL POWER.
51MM THROTTLE BODY OPENINGS x8 FOR UNMATCHED AIR FLOW OVER ANY OTHER INTAKE.

Included in the kit:

Complete Bolt-On ITB Kit.

8x Manifold Runners & Trumpets.
8x Pre-Assembled Throttle Bodies.
Linkage Mechanism & Adjuster Screws
Vacuum Block and Hose Fittings.
2x Fuel Rails for Top Injector Ports

Optional: Flanged Trumpets. No extra cost. Please include in notes upon checkout. Cannot be had in short trumpets.
Optional: Carbon Plenum & Backing Plate (Trumpets include flanges for backing plate). View our other listing here.
Optional: Drive-By-Wire actuator. (Kit will be setup for DBW and not cable throttle). Click Here to Add to Cart.

Installation

Complete bolt-on kit, no additional parts required.

Easy Installation.

Remove factory intake.
Install assembled ITB kit.
Install the factory fuel rail and injectors back on.
Install the factory TPS onto the back of the kit.
Plug in Idle Control, MAP and Brake Booster Vacuum Lines back on.
Balance the throttle bodies to ensure smooth idling.
Tune on factory ECU via HPTuners or similar. (We have a number of tuning files upon request to upload for easy tuning).

Tuning can also be done on Standalone ECU. Please ensure it has Throttle-Based Tuning (Alpha-N) capabilities.

Requires the use of a Air Flow Balancer to balance the throttles upon installation. Found here.

Specification

All throttle bodies and linkage parts are precision CNC machined from 6061 Billet Aluminium.
Center-less ground 12L14 Steel Shafts with Sealed Ball Bearings
High Precisions 7-Degree Brass throttle plates
51mm throttles @ 469CFM flow each.
Spun Aluminium Velocity stacks with parabolic rolled edge for maximum flow with minimal turbulance.
Designed by RHD Engineering.

One year Money-Back Guarantee

Direct Transfer Payment available. Contact Us.

(See Warranty & Returns Page for more details)

Holden, Chevrolet, General Motors, Chevy, Camaro, Pontiac

Most of our products are made-to-order before being shipped out.

This product is for off-road use only.

Redux Racing is not responsible for damage to your car or engine, or resultant injuries to persons.

Use at your own risk.

Dreams do come true

Great product, design, functionality and customer service. Running ITbs alongside a GT35r making all the noises and power, loving it.

Very good customer service.

Andreas helped me with working out what I needed for my bmw to install the ITBs

BMW M30 swapped E30

Got my intake a long time ago when I did the swap originally.

I've been driving it for about 4 years now and havent had an issue with the ITB kit at all.

My car wouldnt be complete without it. It goes very well for its age, not quite modern quick, but for a 36 year old car its more than enough.

ITBs

Got an intake for my E36. Got a lot more power but the sound is what its about.

Fitment

The ITBs are nice, but the carbon plenum didnt fit on my BMW 2002tii as it hits the brake booster. Will return the plenum and run open trumpets only.

1 2 3

Assembled In-House

Every kit is designed and assembled in our workshop to ensure it matches our strict standards and performs perfectly.

Proven & tested

Street, drags, show and track, since 2012 our kits have clocked thousands of laps and millions of miles.

money back guarantee

If you're not 100% satisfied you can send it back for a full refund, including shipping costs, for 12 months after purchase.

LS1 ITB Kit

SEMA 2022 & 2023.

Let the crowd decide. 2023 @Built.By.Rich and 2022 @goodshow_aa

BMW M42 ITB Kit

perfected for performance

Thousands of hours of research, hundreds of designs and dozens of tested vehicles, we make sure all and every kit performs to a world class standard.

smoother idle

By eliminating cylinder cross-talk, very aggressive cams can be run without low RPM stalling and with reduced lumpiness.

Instant throttle response

By giving the intake air a short and direct path into the chamber, the throttle response becomes lightning quick.

increased power

By allowing each cylinder to consume the same and maximum amount of air, your engine can be run at its optimum performance.

GM LS3 ITB KIT

Engineered with precision.

Each model kit has undergone serious testing with proven results

BMW M50 / M52 ITB Kit

Designed with Intention

Every kit bolts directly on, no fabrication and no additional brackets required.

Easily assembled with basic hand tools, be up and running in a matter of hours.

BUILD IT RIGHT WITH:

GM LS1, LS2, LS6 - Individual Throttle Body Kit (ITB) Intake - Cathedral Port LS Manifold