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 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
Gains from 87 WHP/122 WTQ on Stage 2 up to 107 WHP/122 WTQ on Stage 2+
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with DSG transmission only
Get up to +54 hp and +60 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4339161
Mfg#:
909644
In Stock
ON SALE!
SAVE 10%
$549.00
This product was last offered at the strikethrough price on 07-01-2026
Get up to +54 hp and +60 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4338977
Mfg#:
901504
Back Ordered
ON SALE!
SAVE 10%
$549.00
This product was last offered at the strikethrough price on 07-01-2026
Average gain of 18 horsepower and 24 lb-ft of torque on 91/93 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#:
3579506
Mfg#:
IESOCBB1
In Stock
ON SALE!
SAVE 15%
$578.99
This product was last offered at the strikethrough price on 06-25-2026
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
Brand:
ES#:
4368630
Mfg#:
20TSI-GEN3-3D-UC
In Stock
ON SALE!
$1614.99
This product was last offered at the strikethrough price on 06-22-2026
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
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:
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
Eliminate the delay in throttle response times with a simple XLR addition! Allows for Bluetooth connectivity for easy App based control.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4660564
Mfg#:
999941
Ships in 3 Business Days
ON SALE!
SAVE 10%
$299.00
This product was last offered at the strikethrough price on 07-01-2026
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:
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
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!
Proprietary tune box designed specifically for the 2.0L TSI with gains of +40 Horsepower / 60 ft-lb of Torque!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
5339719
Mfg#:
64.10.16
Ships in 2 Business Days
ON SALE!
$649.00
This product was last offered at the strikethrough price on 07-02-2026
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
Add power and performance with special ECU software upgrades from recognized tuning leaders like APR, 034Motorsport, Unitronic, Integrated Engineering. Let our trained support staff show you how to pick the performance ECU software upgrade that suits your driving preferences and budget.
Other Volkswagen Performance ECU Software / Tuning
Lifetime Replacement
