Average gain of 90 horsepower and 76 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. For vehicles from the 2016 model year only.
Average gain of 84 horsepower and 92 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.
Gains up to 55 WHP/122 WTQ over stock, improved launches, and lightning fast shifts thanks to the included DSG tune!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Choose the stage that meets your power goals!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th
Ideal for shops and enthusiasts looking to recalibrate their vehicles for modified hardware
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Max gains of +112 AWHP and +145 AWFT-LBS and a Limited Powertrain Warranty
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. For vehicles up through the 2023 model year only.
Max gains of +191 AWHP and +163 AWFT-LBS and a Limited Powertrain Warranty
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.
Average gain of 68 horsepower and 111 lb-ft of torque
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.
Unlock the full potential of your 8Y RS3 with Unitronic’s cutting-edge performance software!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Average gain of 198 horsepower and 183 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.
Average gain of 97 horsepower and 82 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. For vehicles from the 2016 model year only.
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 This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th
Brand:
ES#:
4369224
Mfg#:
18TSI-IS12-1+D-U
In Stock
ON SALE!
SAVE 11%
$1314.99
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 This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th
Choose the stage that meets your power goals!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th
Average gain of 141 horsepower and 127 lb-ft of torque on 91/93/100 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.
If you've upgraded your car or just want a bit more power from your stock vehicle, performance engine software helps maximize your car's potential by letting it know just where the limits are. Improve your driving experience with upgraded performance engine software from our selection of elite software tuners.
Lifetime Replacement
