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.
Average gain of 61 horsepower and 99 lb-ft of torque on 91 Octane with full bolts-ons
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 of up to 75HP and 98 FT-LBS With 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.
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!
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
Gains from 89 WHP/56 WTQ on Stage 1 up to 137 WHP/86 WTQ on Stage 2 E85
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles up through the 2019 model year 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
Increase of +81 Horsepower, and +126 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes software, supercharger drive pulley, and installation kit for a smooth power transition
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 software upgrade must be performed at ECS Tuning's facility in Ohio. The other components of this up Gains from 108hp/80lb-ft on 93 octane or 117hp/86lb-ft on 100 octane (from OE) - For customers without existing APR Stage 1 upgrade *Vehicle must be brought to ECS Tuning for programming*
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 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 05-21-2026
Gains from 89 HP/123 TQ on 93 octane up to 122 HP/173 TQ on 100 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. Vehicle must be brought to ECS Tuning for programming
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 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 05-21-2026
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
