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Volkswagen Performance ECU Software / Tuning

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ES#4369228 - 18TSI-IS20-2D-UC - Unitronic Performance Software - Stage 2 IS20 - With UniCONNECT+ Cable & 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 6/22/26 - 7/10/26 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 IS20 Turbo Upgrade in addition to other hardware upgrades. Please see description for details.

Brand:
Unitronic - Corporate Logo
ES#:
4369228
Mfg#:
18TSI-IS20-2D-UC
In Stock
ON SALE! SAVE 10%
$1564.99

This product was last offered at the strikethrough price on
06-22-2026

$1414.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4368652 - 18TSI-IS12-1-UC - Unitronic Performance Software - Stage 1 - With UniCONNECT+ Cable - 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 6/22/26 - 7/10/26 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#:
4368652
Mfg#:
18TSI-IS12-1-UC
In Stock
ON SALE! SAVE 18%
$814.99

This product was last offered at the strikethrough price on
06-22-2026

$664.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4872157 - 20G4-ATL-UC - Unitronic Performance Software - With UniCONNECT+ Cable - Choose the stage that meets your power goals! - Unitronic - Volkswagen

Choose the stage that meets your power goals! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 6/22/26 - 7/10/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!

Brand:
Unitronic - Corporate Logo
ES#:
4872157
Mfg#:
20G4-ATL-UC
In Stock
ON SALE!
Starting at $664.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#4461163 - 20FSI-R-UC - Unitronic Performance Software - With UniCONNECT+ Cable - Choose the stage that meets your power goals! - Unitronic - Volkswagen

Choose the stage that meets your power goals! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 6/22/26 - 7/10/26 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#:
4461163
Mfg#:
20FSI-R-UC
In Stock
ON SALE!
Starting at $564.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4368470 - 20TSI-GEN3-3-UC - Unitronic Performance Software - Stage 3 - With UniCONNECT+ Cable - Gain up to 193 horsepower and 145 lb-ft of torque on 93 Octane - Unitronic - Volkswagen

Gain up to 193 horsepower and 145 ​lb-ft of torque on 93 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 6/22/26 - 7/10/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!
Performance Software for your ECU Box Code is subject to availability. Only available for SIMOS 18 equipp
Requires Unitronic Stage 2 TCU Performance Software in addition to other hardware upgrades. Please see description for details.

Brand:
Unitronic - Corporate Logo
ES#:
4368470
Mfg#:
20TSI-GEN3-3-UC
In Stock
ON SALE! SAVE 13%
$1164.99

This product was last offered at the strikethrough price on
06-22-2026

$1014.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4623729 - 20TSI-GEN4 - 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 6/22/26 - 7/10/26 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#:
4623729
Mfg#:
20TSI-GEN4
In Stock
ON SALE!
Starting at $0.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4368627 - 20TSI-GEN3-1D-UC - Unitronic Performance Software - Stage 1 - With UniCONNECT+ Cable & DSG Software - Gain up to 44 horsepower and 90 lb-ft of torque on 91 Octane - Unitronic - Volkswagen

Gain up to 44 horsepower and 90 lb-ft of torque on 91 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 6/22/26 - 7/10/26 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#:
4368627
Mfg#:
20TSI-GEN3-1D-UC
In Stock
ON SALE! SAVE 14%
$1064.99

This product was last offered at the strikethrough price on
06-22-2026

$914.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4368659 - 18TSI-IS20-2-UC - Unitronic Performance Software - Stage 2 IS20 - With UniCONNECT+ Cable - 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 6/22/26 - 7/10/26 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 IS20 Turbo Upgrade in addition to other hardware upgrades. Please see description for details.

Brand:
Unitronic - Corporate Logo
ES#:
4368659
Mfg#:
18TSI-IS20-2-UC
In Stock
ON SALE! SAVE 15%
$1014.99

This product was last offered at the strikethrough price on
06-22-2026

$864.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4368623 - 20TSI-GEN3-1+D - Unitronic Performance Software - Stage 1+ - With DSG Software - Gain up to 62 horsepower and 103 lb-ft of torque on 93 Octane - Unitronic - Volkswagen

Gain up to 62 horsepower and 103 ​lb-ft of torque on 93 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 6/22/26 - 7/10/26 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 business day.

Brand:
Unitronic - Corporate Logo
ES#:
4368623
Mfg#:
20TSI-GEN3-1+D
In Stock
ON SALE! SAVE 16%
$950.00

This product was last offered at the strikethrough price on
06-22-2026

$800.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4464761 - 4.2-4V-FSI-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 6/22/26 - 7/10/26 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
For vehicles from the 2007 model year only.

Brand:
Unitronic - Corporate Logo
ES#:
4464761
Mfg#:
4.2-4V-FSI-UC
In Stock
ON SALE!
Starting at $664.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4368467 - 20TSI-GEN3-2 - Unitronic Performance Software - Stage 2 - Gain up to 83 horsepower and 122 lb-ft of torque on 93 Octane - Unitronic - Volkswagen

Gain up to 83 horsepower and 122 ​lb-ft of torque on 93 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 6/22/26 - 7/10/26 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#:
4368467
Mfg#:
20TSI-GEN3-2
In Stock
ON SALE! SAVE 19%
$800.00

This product was last offered at the strikethrough price on
06-22-2026

$650.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4368465 - 20TSI-GEN3-1+ - Unitronic Performance Software - Stage 1+ - Gain up to 62 horsepower and 103 lb-ft of torque on 93 Octane - Unitronic - Volkswagen

Gain up to 62 horsepower and 103 ​lb-ft of torque on 93 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 6/22/26 - 7/10/26 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#:
4368465
Mfg#:
20TSI-GEN3-1+
In Stock
ON SALE! SAVE 19%
$800.00

This product was last offered at the strikethrough price on
06-22-2026

$650.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4389475 - 20TSI-IS20 - 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 6/22/26 - 7/10/26 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#:
4389475
Mfg#:
20TSI-IS20
In Stock
ON SALE!
Starting at $550.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4465349 - V6-TDI-1-UC - Unitronic Performance Software - Stage 1 - With UniCONNECT+ Cable - Gain up to 50 horsepower and 105 lb-ft of torque - Unitronic - Audi Volkswagen Porsche

Gain up to 50 horsepower and 105 lb-ft of torque affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 6/22/26 - 7/10/26 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#:
4465349
Mfg#:
V6-TDI-1-UC
In Stock
ON SALE! SAVE 20%
$764.99

This product was last offered at the strikethrough price on
06-22-2026

$614.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4381803 - 20TDIMQB-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 6/22/26 - 7/10/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!
For vehicles from the 2015 model year only.

Brand:
Unitronic - Corporate Logo
ES#:
4381803
Mfg#:
20TDIMQB-UC
In Stock
ON SALE!
Starting at $614.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4465320 - V10-TDI - Unitronic Performance Software - Flashed @ ECS - Choose the stage that meets your power goals! - Unitronic - Volkswagen

Choose the stage that meets your power goals! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 6/22/26 - 7/10/26 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#:
4465320
Mfg#:
V10-TDI
In Stock
ON SALE!
Starting at $600.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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