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Volkswagen Jetta Performance TCU Software / Tuning

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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!

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#4424866 - 034-103-274 - MK5/MK6 VW Golf GTI / Jetta / B6 Passat / Tiguan 2.0T TSI Gen 1 Dynamic+ Performance Software Package - Unleash up to 264HP/304TQ by transforming your VW/Audi EA888.1 with Dynamic+ Tuning - delivering ultimate power, drivability, reliability, and enhanced features! - 034Motorsport - Volkswagen

Unleash up to 264HP/304TQ by transforming your VW/Audi EA888.1 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#:
4424866
Mfg#:
034-103-274
Ships in 1 Business Day
ON SALE!
Starting at $162.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#4428229 - 034-103-273 - MK5 VW Golf GTI / Jetta / EOS / Passat B6 2.0T FSI EA113 Dynamic+ Performance Software Package - Unleash up to 309HP/313TQ by transforming your VW/Audi EA113 FSI with Dynamic+ Tuning - delivering ultimate power, drivability, reliability, and enhanced features! - 034Motorsport - Volkswagen

Unleash up to 309HP/313TQ by transforming your VW/Audi EA113 FSI with Dynamic+ Tuning - delivering ultimate power, drivability, reliability, and enhanced features! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with FSI engine only

Brand:
034Motorsport - Corporate Logo
ES#:
4428229
Mfg#:
034-103-273
Ships in 1 Business Day
ON SALE!
Starting at $162.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#4465344 - 2.0-TDI-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 with CBEA or CJAA engine code only. Vehicles with DSG require DSG tune.

Brand:
Unitronic - Corporate Logo
ES#:
4465344
Mfg#:
2.0-TDI-UC
In Stock
ON SALE!
Starting at $564.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4465338 - 2.0-TDI - 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
For vehicles with CAEB or CJAA engine code only. Vehicles with DSG require DSG tune.

Brand:
Unitronic - Corporate Logo
ES#:
4465338
Mfg#:
2.0-TDI
In Stock
ON SALE!
Starting at $400.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4617327 - 20TSI - 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
For vehicles with TSI engines only

Brand:
Unitronic - Corporate Logo
ES#:
4617327
Mfg#:
20TSI
In Stock
ON SALE!
Starting at $400.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4381814 - 20FSI - 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
For vehicles with FSI engines only.

Brand:
Unitronic - Corporate Logo
ES#:
4381814
Mfg#:
20FSI
In Stock
ON SALE!
Starting at $400.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Offers smoother and quicker shifts and a higher torque limit thanks to increased clamping pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This upgrade requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next business day.

Brand:
Tunezilla - Corporate Logo
ES#:
4349038
Mfg#:
DG250-DSG-TUNE
Ships in 7 Business Days
$399.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime 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 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#:
4389476
Mfg#:
20TSI-IS20-UC
In Stock
ON SALE!
Starting at $14.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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
ON SALE!
Starting at $152.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4368624 - 20TSI-GEN3-2D - Unitronic Performance Software - Stage 2 - With DSG Software - 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

Brand:
Unitronic - Corporate Logo
ES#:
4368624
Mfg#:
20TSI-GEN3-2D
In Stock
ON SALE! SAVE 14%
$1100.00

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

$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 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#:
4381800
Mfg#:
20TDIMQB
In Stock
ON SALE!
Starting at $450.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4368625 - 20TSI-GEN3-3D - Unitronic Performance Software - Stage 3 - With DSG Software - 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!
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#:
4368625
Mfg#:
20TSI-GEN3-3D
In Stock
ON SALE! SAVE 10%
$1450.00

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

$1300.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4368622 - 20TSI-GEN3-1D - Unitronic Performance Software - Stage 1 - With 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 requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4368622
Mfg#:
20TSI-GEN3-1D
In Stock
ON SALE! SAVE 17%
$900.00

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

$750.00 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 Volkswagen

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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