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.
For customers that already have APR software on their car and are upgrading to a K04
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 with TSI engines only.
Get up to +40 hp and +50 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 For vehicles with TSI engine up through the 2010 model year only.
Brand:
ES#:
4339159
Mfg#:
909642
Ships in 3 Business Days
ON SALE!
SAVE 10%
$399.00
This product was last offered at the strikethrough price on 07-01-2026
Get up to +54 hp and +62 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#:
4339065
Mfg#:
905572
Ships in 3 Business Days
ON SALE!
SAVE 10%
$399.00
This product was last offered at the strikethrough price on 07-01-2026
Get up to +40 hp and +50 lb-ft through a safe and easy to use tuning module from Racechip
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4339158
Mfg#:
909641
In Stock
ON SALE!
SAVE 10%
$349.00
This product was last offered at the strikethrough price on 07-01-2026
For customers that already have APR software on their car and are upgrading to a K04
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 can be performed via our Chip & Ship method or the vehicle can be brought to ECS Tuning's fa For vehicles with FSI engines only. Ship your ECU for free, or drive your vehicle to our location
Required software to properly upgrade to a K04 turbocharger
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 with TSI engines only. Ship your ECU for free, or drive your vehicle to our location
Get up to +34 hp and +41 lb-ft through a safe and easy to use tuning module from Racechip
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4339157
Mfg#:
909640
Ships in 3 Business Days
ON SALE!
SAVE 10%
$249.00
This product was last offered at the strikethrough price on 07-01-2026
Get up to +50 hp and +49 lb-ft through a safe and easy to use tuning module from RaceChip
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4339063
Mfg#:
905570
Ships in 3 Business Days
ON SALE!
SAVE 10%
$249.00
This product was last offered at the strikethrough price on 07-01-2026
*Sale applies only to ECU with 3 or 4 program purchase.
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.
Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash. Includes JB4 side repair harness molex pigtail.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*Sale only applies to purchases to ECU with 3 or 4 program options
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.
Software to assist in getting power to the ground in a timely manner. Must be purchased in conjunction with another APR tune.
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 can be performed via our Chip & Ship method or the vehicle can be brought to ECS Tuning's fa Ship your ECU for free, or drive your vehicle to our location. For vehicles with manual transmission only.
Plug & play power — Gains starting at 25bhp/50lb-ft on a stock car!
ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5339748
Mfg#:
JB4-GEN1-TSI
In Stock
ON SALE!
SAVE 30%
$479.00
This product was last offered at the strikethrough price on 05-02-2026
Get up to +54 hp and +62 lb-ft through a safe and easy to use tuning module from RaceChip
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4339064
Mfg#:
905571
Ships in 3 Business Days
ON SALE!
SAVE 10%
$349.00
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 tuning module from RaceChip
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4338976
Mfg#:
901503
Ships in 3 Business Days
ON SALE!
SAVE 10%
$499.00
This product was last offered at the strikethrough price on 07-01-2026
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.
