SKU: 77391735449

STAGE 1 PERFORMANCE UPGRADE TO SUIT AUDI A8 D4 CTEC TWIN TURBO DIESEL 4.1L V8

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Description

STAGE 1 PERFORMANCE UPGRADE TO SUIT AUDI A8 D4 CTEC TWIN TURBO DIESEL 4.1L V8This MACE ETC and K&N's air filter have been put together to meet the performance upgrade requirements of Audi A8 CTEC Twin Turbo Diesel V8 engine. Mace ETC eliminates the delay that exists between the throttle pedal and the butterfly in the throttle body, re establishing throttle response and bottom end acceleration while improving low torque. There are different performance modes in this ETC that helps you to increase throttle response and improve

This MACE ETC and K&N's air filter have been put together to meet the performance upgrade requirements of Audi A8 CTEC Twin Turbo Diesel V8 engine.

Mace ETC eliminates the delay that exists between the throttle pedal and the butterfly in the throttle body, re-establishing throttle response and bottom-end acceleration while improving low torque. There are different performance modes in this ETC that helps you to increase throttle response and improve overall drivability.

The K&N replacement air filter is designed to boost the horsepower and acceleration while providing superior filtration. It is washable and reusable and is custom designed to fit into your existing factory air box. This filter lasts up to 80,000km before cleaning is required depending upon driving conditions. It comes with K&N million mile limited warranty and it will not void vehicle warranty.


Modes of ETC:

  • Sport Mode: 9 stages of increased accelerator response suited for spirited driving.
  • Economy Mode: Reduced accelerator response suited for economy driving around towns and on highways.
  • Normal Mode: Factory throttle response.


ETC Features:

  • OBD.II free, meaning power is sourced directly from the pedal and additional plugs are no longer required.
  • Temperature ranges from -40 to 125 °C.
  • Previously set stage numbers are retained thanks to Power off memory function.
  • Digital signal output AD/DA up to 10 Bit, efficiently responds to the original throttle signal.


Air Filter Specifications:

  • Air filter shape: Round
  • Outside diameter: 6.25 in (159 mm)
  • Height: 7.75 in (197 mm)


Contents:

  • 1 X Mace ETC
  • 2 X K&N Air filter

Vehicle Fitment Guide


Notes:

  • Installation of the Mace ETC is quite simple and the modification is completely reversible within a couple of minutes. All kits include simple fitting and calibration instructions.
  • The air filter included in this package can be purchased separately through another listing.
  • The ETC included in this package can be purchased separately through another listing.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 77391735449

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G M
Port Orchard, US
★★★★★ 2
Don't waste your money.
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Did not work!
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Reviewed in the United States on May 7, 2026
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Michael McCollum
Cuba, US
★★★★★ 1
Doesn't work
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No effect at all on my headlights. Don't waste your money.
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Reviewed in the United States on April 30, 2026
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Stephen Woods
Port Orchard, US
★★★★★ 5
Well worth the money. And easy to use.
Item Package Quantity: 1
For what it cost, it worked way better than I expected. 👍
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Reviewed in the United States on April 16, 2026
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Athena
Waukegan, US
★★★★★ 5
The best!
Size: Gravity, Color: Black
Probably the best, most functional, most adaptable (to different cars, going on #3), longest lasting car mount I've tried. Getting another one for my 16 year old who is about to start drinking.
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Reviewed in the United States on April 20, 2026
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Average Consumer
Belleville, US
★★★★★ 5
Must have!
Size: Gravity, Color: Black
I couldn't be more happy with this thing.It's been with me for a couple years now.And it's so sturdy, it gets tightened when loose, and it's easy to remove for cleaning
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Reviewed in the United States on December 13, 2025

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