For customers that already have APR software on their car and are upgrading to a K04
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio.
Brand:
ES#:
2063666
Mfg#:
APRKO4TRV-SWUSRV
In Stock
ON SALE!
SAVE 51%
$325.99
This product was last offered at the strikethrough price on 09-28-2026
Upgrade existing stage 1 and stage 2 software to V2 & V3
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio. For existing Stage 1 or Stage 2 customers with an ECU upgrade installed before 5/14/2015. Vehicle must be brought to ECS Tuning for programming.
Brand:
ES#:
2918505
Mfg#:
30TFSIUPDATEKT
In Stock
ON SALE!
SAVE 20%
$150.00
This product was last offered at the strikethrough price on 09-28-2026
Includes valet, sport, performance, and anti-theft modes
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio.
Brand:
ES#:
3098218
Mfg#:
DPPFLUPG
In Stock
ON SALE!
SAVE 20%
$129.99
This product was last offered at the strikethrough price on 09-28-2026
*Sale only applies to purchases to ECU with 3 or 4 program options
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio.
Brand:
ES#:
2063654
Mfg#:
APRSECPRG-SRV
In Stock
ON SALE!
SAVE 10%
$59.00
This product was last offered at the strikethrough price on 09-28-2026
APR's ECU Upgrade is the best power per dollar modification for your TSI engine out there
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio. 255hp/289lb-ft (93 octane). This upgrade can only be performed with the car present at our facility.
Brand:
ES#:
1303020
Mfg#:
20TCCTASTG4CHP
In Stock
ON SALE!
SAVE 20%
$899.99
This product was last offered at the strikethrough price on 09-28-2026
Direct Port Only - Vehicle has to be brought to our facility
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio. 5.2L FSI V10 - 453HP/460TQ 93 Octane - 445HP/453TQ 91 Octane
Brand:
ES#:
1892525
Mfg#:
52FSISTG1CHIP
In Stock
ON SALE!
SAVE 20%
$949.99
This product was last offered at the strikethrough price on 09-28-2026
For customers WITHOUT APR Stage 1, moving to the IS20 turbocharger upgrade
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio.
Brand:
ES#:
3411790
Mfg#:
18TIS20KT1
In Stock
ON SALE!
SAVE 20%
$849.99
This product was last offered at the strikethrough price on 09-28-2026
Max gains of +166-289 AWHP and +117-203 AWFT-LBS depending on octane
Call In Or Chat For Best Price! Must have Auth Code from T4100004 to purchase. Requires TCU tune. This upgrade must be performed at ECS Tuning's facility in Ohio.
Brand:
ES#:
4899287
Mfg#:
25TG2STG3UPGATH
In Stock
ON SALE!
SAVE 20%
$165.99
This product was last offered at the strikethrough price on 09-28-2026
Gains up to 57HP & 85TQ on 93 Octane, 85HP & 134TQ on E85
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio.
Brand:
ES#:
2792692
Mfg#:
B8.520TSTG1CHP-4
In Stock
ON SALE!
SAVE 20%
$499.90
This product was last offered at the strikethrough price on 09-28-2026
Gains up to 24Hp, 444hp/357lb-ft (93 octane)
Call In Or Chat For Best Price! This upgrade can be performed via our Chip & Ship method or the vehicle can be brought to ECS Tuning's fa
Brand:
ES#:
2678620
Mfg#:
R842STG1CHPKT
In Stock
ON SALE!
SAVE 20%
$1199.99
This product was last offered at the strikethrough price on 09-28-2026
Max gains of +128-222 AWHP and +165-245 AWFT-LBS depending on octane
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio.
Brand:
ES#:
4460632
Mfg#:
ECU-40T-EA825-D5
In Stock
ON SALE!
SAVE 20%
$1699.99
This product was last offered at the strikethrough price on 09-28-2026
Max gains of +75 AWHP and +98 AWFT-LBS at the wheels with a Limited Powertrain Warranty
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio.
Brand:
ES#:
4674721
Mfg#:
ECU29TEA839C8-P
In Stock
ON SALE!
SAVE 20%
$1799.99
This product was last offered at the strikethrough price on 09-28-2026
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
