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Audi A3 Performance TCU Software / Tuning

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ES#5457567 - IESOVN16 - IE Apex ECU Tune With POWERlink Cable - The ultimate "no-limits" tier that provides access to every stage and map, including Stage 3 big turbo files for maximum horsepower. - Integrated Engineering - Audi Volkswagen

The ultimate "no-limits" tier that provides access to every stage and map, including Stage 3 big turbo files for maximum horsepower. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
5457567
Mfg#:
IESOVN16
In Stock
Starting at $179.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4370469 - 20TSI-GEN3B-1+D - Unitronic Performance Software - Stage 1+ - With DSG Software - Gain up to 65 horsepower and 83 lb-ft of torque on 93 Octane - Unitronic - Audi

Gain up to 65 horsepower and 83 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 requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4370469
Mfg#:
20TSI-GEN3B-1+D
In Stock
ON SALE! SAVE 13%
$1150.00

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

$1000.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4369229 - 18TSI-IS38-2+D - Unitronic Performance Software - Stage 2+ IS38 - With 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 requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next
Requires IS38 Turbo Upgrade in addition to other hardware upgrades. Please see description for details.

Brand:
Unitronic - Corporate Logo
ES#:
4369229
Mfg#:
18TSI-IS38-2+D
In Stock
ON SALE! SAVE 10%
$1550.00

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

$1400.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4369226 - 18TSI-IS12-2D-UC - Unitronic Performance Software - Stage 2 - With UniCONNECT+ Cable & DSG Software - Gain up to 87 horsepower and 106 lb-ft of torque on 93 Octane - Unitronic - Audi Volkswagen

Gain up to 87 horsepower and 106 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 Unitronic 3 Inch Downpipe

Brand:
Unitronic - Corporate Logo
ES#:
4369226
Mfg#:
18TSI-IS12-2D-UC
In Stock
ON SALE! SAVE 10%
$1464.99

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

$1314.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4369223 - 18TSI-IS12-1+D - Unitronic Performance Software - Stage 1+ - With 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 requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4369223
Mfg#:
18TSI-IS12-1+D
In Stock
ON SALE! SAVE 13%
$1150.00

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

$1000.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4369227 - 18TSI-IS20-2D - Unitronic Performance Software - Stage 2 IS20 - With DSG Software - Gain up to 131 horsepower and 125 lb-ft of torque on 93 Octane - Unitronic - Audi Volkswagen

Gain up to 131 horsepower and 125 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 requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next
Requires IS20 Turbo Upgrade in addition to other hardware upgrades. Please see description for details.

Brand:
Unitronic - Corporate Logo
ES#:
4369227
Mfg#:
18TSI-IS20-2D
In Stock
ON SALE! SAVE 11%
$1400.00

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

$1250.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4369221 - 18TSI-IS12-1D - Unitronic Performance Software - Stage 1 - With 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 requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4369221
Mfg#:
18TSI-IS12-1D
In Stock
ON SALE! SAVE 14%
$1100.00

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

$950.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4370467 - 20TSI-GEN3B-1D - Unitronic Performance Software - Stage 1- With DSG Software - Gain up to 43 horsepower and 69 lb-ft of torque on 91 Octane - Unitronic - Audi

Gain up to 43 horsepower and 69 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 requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4370467
Mfg#:
20TSI-GEN3B-1D
In Stock
ON SALE! SAVE 14%
$1100.00

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

$950.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4381800 - 20TDIMQB - Unitronic Performance Software - Flashed @ ECS - 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 requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4381800
Mfg#:
20TDIMQB
In Stock
ON SALE!
Starting at $450.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4369225 - 18TSI-IS12-2D - Unitronic Performance Software - Stage 2 - With DSG Software - Gain up to 87 horsepower and 106 lb-ft of torque on 93 Octane - Unitronic - Audi Volkswagen

Gain up to 87 horsepower and 106 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 requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next
Requires Unitronic 3 Inch Downpipe

Brand:
Unitronic - Corporate Logo
ES#:
4369225
Mfg#:
18TSI-IS12-2D
In Stock
ON SALE! SAVE 12%
$1300.00

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

$1150.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4877247 - 034-103-2820 - 8V Audi A3 EA888.3 1.8T Dynamic+ Performance Software Package - Unleash up to 261HP/322TQ by transforming your VW/Audi MQB 1.8T with Dynamic+ Tuning - delivering ultimate power, drivability, reliability, and enhanced features! - 034Motorsport - Audi

Unleash up to 261HP/322TQ by transforming your VW/Audi MQB 1.8T with Dynamic+ Tuning - delivering ultimate power, drivability, reliability, and enhanced features! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4877247
Mfg#:
034-103-2820
Ships in 2 Business Days
Starting at $180.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#4465420 - VLK0020120-A - COBB Stage 2 Power Package - Without DSG Software - Flash your ECU and unleash the power your vehicle was meant to have. - CobbTuning - Audi

Flash your ECU and unleash the power your vehicle was meant to have. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CobbTuning - Corporate Logo
ES#:
4465420
Mfg#:
VLK0020120-A
Ships in 2 Business Days
$1790.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

An advanced, all-in-one vehicle interface designed for high-speed scanning, diagnosing, and custom tuning across thousands of makes and models. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes enough credits to license the vehicle for a TCU tune on vehicles with 7-Speed, DQ381 DSG Transmission.

Brand:
HP Tuners - Corporate Logo
ES#:
5445214
Mfg#:
MPVI4
Ships in 3 Business Days
$399.99 USD

Unleash the true potential of your Gen 5 Haldex system with increased clamping pressure for maximum traction and faster launches. 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!

Brand:
APR - Corporate Logo
ES#:
5456931
Mfg#:
SW300001-02
Ships on Jun 29, 2026
$549.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

maximum rear-torque capacity and improved acceleration. 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!

Brand:
APR - Corporate Logo
ES#:
5456932
Mfg#:
SW300001-12
Ships on Jun 29, 2026
$99.99 USD
Free Shipping
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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