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Audi A3 Performance TCU Software / Tuning

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ES#4759009 - EM100040 - APR Ultralink At-Home Tuning Cable - Tuning your vehicle with APR Software has never been easier thanks to the APR Ultralink! - APR - Audi Volkswagen Porsche

Tuning your vehicle with APR Software has never been easier thanks to the APR Ultralink! Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Only available for purchase in the United States and Canada.

Brand:
APR - Corporate Logo
ES#:
4759009
Mfg#:
EM100040
In Stock
$139.95 USD
Free Shipping
ES#4684889 - 034-103-3306 - Dynamic+ End User Flashing Kit R4 (Flashing Device Only - Tuning Not Included) - End User Flashing allows Dynamic+ Performance Software customers to receive and install software updates and revisions, flash back to stock, or upgrade to the next stage of performance software for their vehicle. - 034Motorsport - Audi Volkswagen

End User Flashing allows Dynamic+ Performance Software customers to receive and install software updates and revisions, flash back to stock, or upgrade to the next stage of performance software for their vehicle. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
The 034SPI Mobile App is only available on vehicles with Dynamic+ Tuning installed. You must purchase Dynamic+ Tuning for your Audi or Volkswagen to access the Dynamic+ Flashing Suite and 034SPI Mobile Application.

Brand:
034Motorsport - Corporate Logo
ES#:
4684889
Mfg#:
034-103-3306
EO#:
D-850
In Stock
$180.00 USD
Free Shipping
ES#4727518 - EM100039 - APR Remote Tuning Service Install Cable - APR can now remotely tune you car from anywhere in the world! Simply purchase the APR RTS Install Cable and setup a remote tuning session with APR or participating APR Dealer. - APR - Audi Volkswagen Porsche

APR can now remotely tune you car from anywhere in the world! Simply purchase the APR RTS Install Cable and setup a remote tuning session with APR or participating APR Dealer. Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Tuning must be performed by APR or a participating dealer. ECS Tuning does not offer the APR Remote Tuning Service at this time.

Brand:
APR - Corporate Logo
ES#:
4727518
Mfg#:
EM100039
In Stock
$163.95 USD
Free Shipping
ES#4615998 - 20TSI-GEN1 - Unitronic Performance Software - With UniCONNECT+ Cable - Choose the stage that meets your power goals! - Unitronic - Audi Volkswagen

Choose the stage that meets your power goals! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 5/22/26 - 6/5/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!

Brand:
Unitronic - Corporate Logo
ES#:
4615998
Mfg#:
20TSI-GEN1
In Stock
ON SALE!
Starting at $564.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4381815 - 20FSI-UC - Unitronic Performance Software - With UniCONNECT+ Cable - Choose the stage that meets your power goals! - Unitronic - Audi Volkswagen

Choose the stage that meets your power goals! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 5/22/26 - 6/5/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!
For vehicles with FSI engines only.

Brand:
Unitronic - Corporate Logo
ES#:
4381815
Mfg#:
20FSI-UC
In Stock
ON SALE!
Starting at $564.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3624425 - AP3-VLK-002-DSG - COBB Tuning Accessport V3 With DSG Flashing  - Flash your ECU and TCU and unleash the power your VW was meant to have. - CobbTuning - Audi Volkswagen

Flash your ECU and TCU and unleash the power your VW was meant to have. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CARB certified for sale in all 50 states

Brand:
CobbTuning - Corporate Logo
ES#:
3624425
Mfg#:
AP3-VLK-002-DSG
EO#:
D-660-33
Ships in 2 Business Days
$1195.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4656989 - IESOVN44DSG - IS38 Turbo IE Performance ECU Tune - Includes DSG Tune & POWERlink Cable - Average gain of 198 horsepower and 183 lb-ft of torque on 91 Octane - Integrated Engineering - Audi Volkswagen

Average gain of 198 horsepower and 183 lb-ft of torque on 91 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4656989
Mfg#:
IESOVN44DSG
In Stock
$1777.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4369224 - 18TSI-IS12-1+D-U - Unitronic Performance Software - Stage 1+ - With UniCONNECT+ Cable & DSG Software - Gain up to 84 horsepower and 108 lb-ft of torque on 93 Octane - Unitronic - Audi Volkswagen

Gain up to 84 horsepower and 108 lb-ft of torque on 93 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 5/22/26 - 6/5/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!
This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th

Brand:
Unitronic - Corporate Logo
ES#:
4369224
Mfg#:
18TSI-IS12-1+D-U
In Stock
ON SALE! SAVE 11%
$1314.99

This product was last offered at the strikethrough price on
05-21-2026

$1164.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4759403 - VLK0020010-DSG - COBB Stage 1 Power Package With DSG / S-Tronic Flashing  - Flash your ECU, TCU, and add a high-flow Cobb filter to unleash the power your VW/Audi was meant to have! - CobbTuning - Audi Volkswagen

Flash your ECU, TCU, and add a high-flow Cobb filter to unleash the power your VW/Audi was meant to have! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CobbTuning - Corporate Logo
ES#:
4759403
Mfg#:
VLK0020010-DSG
Ships in 2 Business Days
$1225.00 USD
Free Shipping
ES#4369222 - 18TSI-IS12-1D-UC - Unitronic Performance Software - Stage 1 - With UniCONNECT+ Cable & DSG Software - Gain up to 72 horsepower and 88 lb-ft of torque on 91 Octane - Unitronic - Audi Volkswagen

Gain up to 72 horsepower and 88 lb-ft of torque on 91 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 5/22/26 - 6/5/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!
This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th

Brand:
Unitronic - Corporate Logo
ES#:
4369222
Mfg#:
18TSI-IS12-1D-UC
In Stock
ON SALE! SAVE 12%
$1264.99

This product was last offered at the strikethrough price on
05-21-2026

$1114.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5457523 - IESOVN11 - IE Core ECU Tune With POWERlink Cable - The perfect entry point for a stock car, delivering a massive Stage 1 power bump with no additional hardware required. - Integrated Engineering - Audi Volkswagen

The perfect entry point for a stock car, delivering a massive Stage 1 power bump with no additional hardware required. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
5457523
Mfg#:
IESOVN11
In Stock
Starting at $179.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4369230 - 18TSI-IS38-2+D-U - Unitronic Performance Software - Stage 2+ IS38 - With UniCONNECT+ Cable & DSG Software - Gain up to 182 horsepower and 139 lb-ft of torque on 93 Octane - Unitronic - Audi Volkswagen

Gain up to 182 horsepower and 139 lb-ft of torque on 93 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 5/22/26 - 6/5/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!
This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th
Requires IS38 Turbo Upgrade in addition to other hardware upgrades. Please see description for details.

Brand:
Unitronic - Corporate Logo
ES#:
4369230
Mfg#:
18TSI-IS38-2+D-U
In Stock
ON SALE!
$1714.99

This product was last offered at the strikethrough price on
05-21-2026

$1564.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4877100 - 034-103-277A - 8V Audi A3 2.0T Gen 3 IS20 Dynamic+ Performance Software Package - Unleash up to 303HP/341TQ by transforming your VW/Audi IS20 2.0T with Dynamic+ Tuning - delivering ultimate power, drivability, reliability, and enhanced features! - 034Motorsport - Audi

Unleash up to 303HP/341TQ by transforming your VW/Audi IS20 2.0T with Dynamic+ Tuning - delivering ultimate power, drivability, reliability, and enhanced features! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Stage 1 CARB Exempt for Sale in All 50 States!

Brand:
034Motorsport - Corporate Logo
ES#:
4877100
Mfg#:
034-103-277A
EO#:
D-850-1
Ships in 1 Business Day
Starting at $180.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#4389476 - 20TSI-IS20-UC - Unitronic Performance Software - With UniCONNECT+ Cable - Choose the stage that meets your power goals! - Unitronic - Audi Volkswagen

Choose the stage that meets your power goals! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 5/22/26 - 6/5/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!
This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th

Brand:
Unitronic - Corporate Logo
ES#:
4389476
Mfg#:
20TSI-IS20-UC
In Stock
Starting at $164.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4759413 - VLK0020010FF-DSG - COBB Stage 1 + Flex Fuel Power Package With DSG / S-Tronic Flashing - Flash your ECU, TCU, and add a high-flow Cobb filter to unleash the power your VW/Audi was meant to have! - CobbTuning - Audi Volkswagen

Flash your ECU, TCU, and add a high-flow Cobb filter to unleash the power your VW/Audi was meant to have! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CobbTuning - Corporate Logo
ES#:
4759413
Mfg#:
VLK0020010FF-DSG
Ships in 2 Business Days
$1445.00 USD
Free Shipping
on orders $49 and up
ES#4271502 - iesovn42dsgKT - Stage 2 IE Performance ECU Tune - Includes DSG Tune & POWERlink Cable - Average gain of 111 horsepower and 233 lb-ft of torque on 91 Octane - Integrated Engineering - Audi Volkswagen

Average gain of 111 horsepower and 233 lb-ft of torque on 91 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4271502
Mfg#:
IESOVN42DSGKT
In Stock
$1427.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance TCU Software / Tuning

Add power and performance with special TCU software upgrades from recognized tuning leaders like APR, 034Motorsport, Unitronic, and Integrated Engineering. Let our trained support staff show you how to pick the performance ECU software upgrade that suits your driving preferences and budget.

Let us help you find the parts that fit your Audi

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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