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Delivery to Ireland now available again 🥳
Delivery to Ireland now available again 🥳
  Awaiting stock. Order today for dispatch in 16 working days.


Already running a Dual Pulley setup on your Audi S4 or S5 and looking for more? The IE Ultimate Throttle Body Upgrade kit includes everything needed to remove the final power restriction with an over 20% higher flowing throttle body fully releasing the complete power potential from your factory supercharger. With matching software (free upgrade for existing Dual Pulley customers) this will result in up to 548HP!


  • Maxes out horsepower and torque on dual pulley setups
  • Includes everything needed to bolt on 80mm throttle body
  • Free tune upgrade included with IE Dual Pulley Tunes
  • Direct fit install with IE Cold Air Intakes
  • High flow CNC machined cast aluminum throttle adapter 
  • Plug and play throttle body harness included

Let Your Supercharger Breathe

IE's Ultimate Throttle Body Upgrade Kit has been engineered for existing Dual Pulley Tuned Audi 3.0T Supercharged engines. This complete bolt-on kit completely removes the removes the factory restrictive throttle body and replaces it with a much larger 80mm throttle body and cast adapter that creates a smooth transition from the air intake to the supercharger.

Your Stock Throttle Is Robbing You Off Power

Your factory-installed throttle body has a smaller inlet than the supercharger that functions perfectly fine on stock power levels. However, on higher power setups running dual pulleys, heat exchangers, higher octanes, and Stage 2 Dual Pulley ECU calibrations this small restriction becomes a major damn for airflow unable to keep up with aftermarket performance parts requesting more flow.  By increasing the size of the throttle body with our smooth transition cast-aluminum adapter the supercharger can fully breathe to its utmost capability.

Integrated Engineering Audi 3.0T Throttle Body Upgrade Kit (B8 B8.5 S4, S5, C7 A6, A7 & SQ5 Q5) ML Performance UK

Free ECU Tune Calibration

Throttle body upgrades require matching ECU software to run and perform correctly. IE's Throttle Body ECU Tune is available as a free upgrade for all existing IE Stage 2 Dual Pulley owners. Don't already own IE Dual Pulley? The Throttle Body update is also included with all Dual Pulley tunes when purchased at no additional cost.

Operates Like Factory

Your car will be up and running in no time, by simply flashing the Throttle Body Upgrade software and plugging in the new throttle body with the included extension harness. There are no electrical trick boxes or funky harnesses to give you issues.

Size Matters

Before the design phase, engineers performed flow bench and power tests of multiple throttle body sizes to determine the best throttle body size to include in our kit. This is a delicate balance. While easier to fit, smaller throttle bodies do not completely open up the factory restriction while larger 90mm throttle bodies resulted in no extra power gains. The included 80mm throttle body offers the most power available from a size standpoint when upgrading your throttle body.

Size Is Nothing But Flow

The larger throttle body is only one part of the equation, simply creating an adapter plate and bolting on a larger throttle body creates abrupt changes and inhibits air flow. The included IE throttle adapter is cast and CNC machined from aerospace quality aluminum creating a smooth transition from the larger throttle body to the supercharger inlet

Integrated Engineering Audi 3.0T Throttle Body Upgrade Kit (B8 B8.5 S4, S5, C7 A6, A7 & SQ5 Q5) ML Performance UK

Direct Fit To IE Cold Air Intake

IE's Throttle Body Upgrade Kit includes a new air intake inlet hose that is a direct fit your IE Cold Air Intake creating a perfect transition from the intake velocity stack directly to the new 80mm throttle body. No modifications or extra adapters required!


- Audi 3.0T B8/B8.5 S4

- Audi 3.0T B8.5 S5

Fitted Photos

Manufactured by

Integrated Engineering (IE)

Part Number


Useful Information

  • We deliver to every country in the world, if shipping rates are not available at checkout please contact us.
  • Some item(s) are not actively held in stock and usually sell out quickly, please contact sales to perform a stock check if you are unsure.
  • Full tracking is available for all orders, you will receive tracking and dispatch updates via email.
  • It can take up-to 16 working days for out of stock orders to be dispatched.
For more shipping & delivery information, please click here.
We offer fitting on most of our products at our facility in Warrington, Cheshire. Please contact us to get a quote on have us fit your products.
Ultimate Customs Group LTD do not accept any liability if damage is caused to your car by the installation of this product.

Professional installation is recommended on all of our products. Please contact us to see if we offer a fitting service for the item(s) you wish to purchase.