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.
Stage 2 ECU tune that provides the necessary calibration for aftermarket downpipes and aggressive exhaust crackles while maintaining Stage 1 power levels for 2017-2020 Audi B9 S4, S5, and SQ5 models.
Stage 3 Plus ECU tune that adds an upgraded HPFP, injectors, and 4-bar MAP sensors alongside hybrid turbos to unlock a massive 739 horsepower and 710 lb-ft of torque for 2017-2020 Audi B9 S4, S5, and SQ5 models.
Stage 1 ECU tune that unleashes up to 505 horsepower and 585 lb-ft of torque for 2017-2020 Audi B9 S4, S5, and SQ5 models directly from your smartphone.
Stage 3 ECU tune designed for TTE810 or Pure750 hybrid turbo upgrades on stock fueling to deliver track-ready performance for 2017-2020 Audi B9 S4, S5, and SQ5 models directly from your smartphone.
Gain up to 69 horsepower and 97 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
Brand:
ES#:
4376317
Mfg#:
30T-EA839-1
In Stock
ON SALE!
SAVE 18%
$850.00
This product was last offered at the strikethrough price on 08-23-2026
More Power. More Fun. Plus, a Limited Powertrain Warranty
Call In Or Chat For Best Price! This upgrade requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the ne
Average gain of 100 horsepower and 73 lb-ft of torque on 91 Octane and Supercharger pulley upgrade
Compatible for vehicles up to 2012 model year only - Vehicle must be brought to ECS Tuning for programming *SIMOS 8.3 ECU is not yet supported*
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
