Tuning your vehicle with APR Software has never been easier thanks to the APR Ultralink!
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes! Only available for purchase in the United States and Canada.
APR ECU Upgrade for the 2.5T GTS engine - Requires no engine hardware modifications, and produces 420-458HP with 393-448 Ft-Lbs of torque, depending on octane.
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes! This upgrade must be performed at ECS Tuning's facility in Ohio.
APR ECU Upgrade for the 2.5T 982 718 Cayman / Boxster S - Requires no engine hardware modifications, and produces 398-439HP with 387-421 Ft-Lbs of torque, depending on octane.
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes! This upgrade must be performed at ECS Tuning's facility in Ohio.
The APR Stage 1 ECU Upgrade is the first step towards tuning your engine. It produces up to 420-458 HP and 393-448 FT-LBS of torque with gains as high as +42-81 HP and +52-106 FT-LBS of torque at the wheels.
2X Entries For Our 25th Anniversary Sweepstakes!
Increase of +75 Horsepower, and +91 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance high-flow exhausts!
Increase of +57 Horsepower, and +81 Torque, Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!
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.
Brand:
ES#:
4714892
Mfg#:
JB4-OBDII-CA-MC
Ships on Aug 11, 2026
$30.00 USD
Lifetime Replacement
More About Performance ECU & TCU Tuning
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.
