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 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
Brand:
ES#:
3509833
Mfg#:
PA100008KT
Back Ordered
ON SALE!
SAVE 20%
$299.99
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. From the 2013 model year.
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
Does not include injectors - Gains of up to 55 HP & 100 LB-FT torque on 93 octane!
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio. For existing Stage 1 customers upgrading to Stage 1+. Drive your vehicle to our location
Brand:
ES#:
2918519
Mfg#:
B6A4STG1UPGRDKT
In Stock
ON SALE!
SAVE 10%
$150.00
This product was last offered at the strikethrough price on 09-28-2026
Gain up to 16 horsepower and 17 lb-ft of torque on 91 Octane
This tune requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next
Gain up to 13 horsepower and 15 lb-ft of torque on 91 Octane
This tune requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next
Gain up to 16 horsepower and 14 lb-ft of torque on 91 Octane
This tune requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next
Unleash up to 357HP/396TQ by transforming your Audi B9 A4/A5 with Dynamic+ Tuning - delivering ultimate power, drivability, reliability, and enhanced features!
2X Entries Into Our F80 M3 Sweepstakes
Features CAN-Bus connectivity for more advanced tuning — gain up to 30whp and 45lb-ft. of torque
Not for sale or use in the state of California. Fits 190hp models only
Proprietary tune box designed specifically for the EA888.3 2.0L 40 TFSI with gains of +45 Horsepower / 45 ft-lb of Torque!
Compatible with 2020+ model years only
Brand:
ES#:
4906481
Mfg#:
64.02.14
Ships in 2 Business Days
$649.00
This product was last offered at the strikethrough price on 08-12-2026
Higher peak figures of 306 HP with 376 FT-LBS of torque - *with APR PLUS limited powertrain warranty*
Call In Or Chat For Best Price! This upgrade must be performed at ECS Tuning's facility in Ohio.
Brand:
ES#:
3690535
Mfg#:
B9A420TSTG1KT1
Ships in 1-2 days
ON SALE!
SAVE 20%
$1099.99
This product was last offered at the strikethrough price on 09-28-2026
***Please see photos and description prior to ordering, all sales final.***
Wirelessly connect your JB4 to your phone!
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!
Brand:
ES#:
5529294
Mfg#:
JB4-SPWCK-FSD6
Ships in 1 Business Day
Limited Qty Sale
$158.99
This product was last offered at the strikethrough price on 10-30-2026
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
