Name: GM LS3, L76, L77, L98 Intake- Individual Throttle Body (ITB) Kit - Rectangular Port LS Manifold
Brand: RHD Engineering
SKU: ITB-RHD-LS3OS
Price: 3218.85 USD
Availability: OutOfStock

GM LS3, L76, L77, L98 Intake- Individual Throttle Body (ITB) Kit - Rectangular Port LS Manifold

$3,218.85

Quantity

Throttle Drive

Cable Throttle

Drive-By-Wire

Trumpet Size

Short Trumpets (50mm/2inch)

Medium Trumpets (75mm/3inch)

Medium Trumpets with Flanges (3 Inch) & Backing Plate

Tall Trumpets (7inch/180mm)

World Wide Shipping available.

Assembled & Customised to order.

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SOLD OUT DUE TO HIGH DEMAND. RETURNING IN SEPT.
Independent Throttle Body Intake Manifold Kit for all Gen 4 LS Engines with Rectangular Port Heads.

Fits LS3, LS9, L76, L77, L98, LY6 etc.

Also known as Velocity Stacks, Downdraft, ITB or Trumpets.

Performance

MOST POWERFUL N/A INTAKE ON THE MARKET.

Has been compared to the best of Holley & FAST on back-to-back dyno's.

ULTRA SMOOTH IDLE FOR LARGE DURATION CAMS.

No cross turbulence within the manifold due to cam overlap means that each cylinder gets consistent flow and eliminates stalling.

SMOOTH LOW-RPM DRIVABILITY

Easily adjust each cylinder to be of exactly equal flow in under 5 minutes. Something only ITBs allow.

IMPROVED LOW & MID-RANGE TORQUE

Dyno tested on dozens of vehicles.

AMAZING INDUCTION SOUND

Hear the roar of every cylinder, even with filters.

Comes with Low and High mount injector port options. High mount ports are particularly effective for use of E85 or nitrous.

Complete Bolt-On ITB Kit.

8x Manifold Runners & Trumpets.
8x Pre-Assembled Throttle Bodies.
Linkage Mechanism & Adjuster Screws
Vacuum Block, Hose Fittings and Silicone Hose.

2x Aluminium Injector Rails for High-Mount Ports

Throttle Control:

Option 1: Cable Throttle. - For use with Standard LS1 Cable Throttle.
- Kit will come partially assembled.
Option 2: DBW Throttle - Includes Supply & Setup with 6-Pin GM Throttle Body.
- Kit will come fully assembled.
- Uses a genuine GM throttle body with square 6-pin connector for use with LS.
  
  Flat 8-Pin connectors off some LS1 models will require an adapter harness.
  
  It is highly recommended to run a standalone ECU when installing a drive-by-wire fitted kit. Sometimes adapting the throttle body settings via the OEM ECU can be difficult. Recommended options include Holley Terminator X Max, ECUMaster and any ECU with Alpha-N capability.

Plenum:

Optional: Carbon Plenum & Backing Plate (Trumpets include flanges for backing plate). View our other listing here.

Filtration:

Please contact us for other filtration option recommendations.

Installation

Complete bolt-on kit. No additional parts required for operation. Uses factory fuel rails, injectors etc.

OEM Idle Control Valve and Throttle Position Sensor fits on the rear of the kit for easy installation. (Cable Throttle Only).

Tuning is required via Alpha-N. Can be tuned on the OEM ECU or with a standalone ECU.

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
54mm throttles @ 531CFM flow each.
Spun Aluminium Velocity stacks with parabolic rolled edge for maximum flow with minimal turbulance.
Designed by RHD Engineering.

Direct Transfer Payment available. Contact Us.

One year Money-Back Guarantee.

(See Warranty & Returns Page for more details)

Holden, Pontiac, Chevrolet, General Motors

All ITB Kits & ITB Packages are packed and fulfilled 2-3 weeks after ordering.

Shipping is via DHL Express and usually 3-4 Days to USA and 5-7 Days to Europe.

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.

5 stars: 24 (100%)
4 stars: 0 (0%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Some of the reviews shown are from related products the merchant grouped with this one.

Quality parts

Installed the itb on a 320i, the car is more reactive and feel way better

They look and perform better than anything else on the market! Hands down the best.

We got it dialed in and it fires right up and doesn’t miss a beat. Love the looks and the style. I get more looks with this setup that any other I have had. Thank you for a nice piece of equipment.

Ls3 awesome idle

Installed on my ls3 It does everything advertised no more trying to die out when you come off the throttle and response is insane great system getting ready to order one for my 32 3 window ls6

the last pièce for my engine m20b31

I have just received and installed the itb on my m20, the quality is top notch, very nice manufacturing, perfect fit, and beautiful final result.Very happy.I will complete when tuning will Be done

Dreams do come true

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

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.

Holden Commodore LS3

I'm very happy with the results. I love driving this car and giving it a boot just to hear the noise.
The car made an additional 30+whp, was already tuned previously.

I bought the LS3 ITB Kit with the Drive-By-Wire Module. The inlet filters do take some of the power so I like to take them out for shows and events.

Really impressive 40hp power gains and good service.

I bought an ITB Kit for my E21 with a stroked M20 2.8L motor fitted. My car had a 40bhp incease with the ITBs fitted now producing 268bhp. The kit is great and fitted perfectly. The only criticism is the little dimple in the top of the carbon airbox didn't fit my strut brace so I found a different one that worked.

The E21 Started live as a 323i 143bhp then we added hotter cam better breathing to get up to 170bhp.

A few years later fitted a m20 b2.5 from an e30 in there that we tuned to 200bhp but wanted more so that motor then got stroked out to a 2.8 using the crank from a e36 328i with a schrick 286 cam and stand alone ecu it was producing 230bhp.

It was great running hard on track but a bit lumpy on the road as we had binned the airflow meter when we went standalone. It wasn't great on a light throttle so the ITB'S were what it needed all along to get the fueling dialed in. Its so sharp, the throttle response is something else and now its fast as hell!

BMW M50 Intake

My car made 316 WHP its lexus 87.5 pistons and catcams cams 284-272.

Great ITB System

When I received my system, I was very surprised how nice it was. The best thing about this system is that it works with my factory ECM and sensors which required very little wiring change. I received very good support when it came to installing and tuning the system the guys constantly kept in touch with me until I was up and running. For a show car this system looks and runs great. It will be hard to find a better ITB system for that price and support.

WAKE UP YOUR M30!

Recently installed these throttle bodies on my M30b35 E28( which the whole assembly is featured on my youtube, @m3nameisjosh) and they have transformed my engine. The sound is intoxicating, it is a riot to drive, and install was fairly straight forward. Very high quality kit.

Love it

Perfect execution and parts

Engineering and parts are very well executed. Packaging and e-mail response all very good. Happy to submit a new order for LS7 manifold when available

Great product can’t wait to assemble them and get them installed

e39 m54 engine?

I want to install on e39.
Is it possible for the e39 m54 engine?

Mint !

These are great, clear instructions and Andreas specifically was really helpful when i had questions.

BMW m20 ITB kit

Love the build quality and everything came as it should have and fits perfectly!

Easy installation - fits and works great.

Very good service. Amazing product

Very good service.amazing individual throttle body kit for my ls3.
Daniel from Québec. Canada.

M20 ITBs

First off, I just want to say customer service is phenomenal! I had a few questions about the full itb kit for my E34 m20 and Andreas help me out so much. Ended up getting the partial kit which suited my build perfect. Everything came packaged very well! I couldn't be happier with the ibt kit and the help I received from Andreas.

M20

The kits installed and works great. My bmw e30 with an m20 made 180whp with cams and a stand-alone, on 91 octane.

Exellent!!! Just Great

It changed my cars driveability all together, better response, everything is easy to install and high Quality!!
The cars engine keeps on giving now.
Great team as well, Thanks Redux

Very high quality.

The parts and everything look to be very high quality so far. I have not had a chance to assemble the kit yet because I have been taken up with other projects. As sim as I get it assembled and in the car I will leave another review.