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
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
Flash your ECU and TCU and unleash the power your VW/Audi was meant to have.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms CARB certified for sale in all 50 states
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 For 4Motion models only
Brand:
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 06-22-2026
This upgrade can only be performed with the car at ECS Tuning's location in Ohio
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! 321hp/351ft-lbs (93 Octane) --- 313hp/340ft-lbs (91 Octane). This upgrade must be performed at ECS Tuning
Average gain of 46 horsepower and 52 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:
ES#:
3579494
Mfg#:
IESOCCC1
In Stock
ON SALE!
SAVE 15%
$628.99
This product was last offered at the strikethrough price on 06-25-2026
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
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!
Max gains of +32-45 WHP and +61-78 WFT-LBS depending on octane
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! This upgrade must be performed at ECS Tuning's facility in Ohio.
Max gains of +63-69 WHP and +96-101 WFT-LBS at the wheels (Stage 1) and +76-84 WHP and +96-101 WFT-LBS (Stage 2)
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! This upgrade must be performed at ECS Tuning's facility in Ohio.
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 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 4Motion models only. Requires IS38 Turbo Upgrade in addition to other hardware upgrades. Please see description for details.
Brand:
ES#:
4369230
Mfg#:
18TSI-IS38-2+D-U
In Stock
ON SALE!
$1714.99
This product was last offered at the strikethrough price on 06-22-2026
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 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 Unitronic 3 Inch Downpipe
Brand:
ES#:
4368657
Mfg#:
18TSI-IS12-2-UC
In Stock
ON SALE!
SAVE 16%
$914.99
This product was last offered at the strikethrough price on 06-22-2026
All the performance ECU/TCU upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.
Lifetime Replacement
