Increases boost for "dual pulley" tune power levels without replacing the press-on supercharger pulley for an easier install.
5X Entries For Our 25th Anniversary Sweepstakes! Requires stage 2 dual pulley ECU tune
Wirelessly connect your JB4 to your phone!
For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
Average gain of 83 horsepower and 82 lb-ft of torque on 91 Octane
5X Entries For Our 25th Anniversary Sweepstakes! For 8-speed automatic transmissions only
Great for when more fuel is needed in a custom fueling application
This is a general-use high flow fuel pump, not a direct plug-and-play swap in most application
Eliminates the problematic two-piece design and rubber isolator found in the stock crank pulley while reducing the mass of the motor's rotating assembly.
*To be used with 'Stage 2' software or software specific to a supercharger crank pulley upgrade*
Easily increase the supercharger rotational speed to create more boost
10X Entries For Our 25th Anniversary Sweepstakes! Appropriate stage 2 software is required for use
Brand:
ES#:
3551738
Mfg#:
025509ECS01
In Stock
ON SALE!
SAVE 23%
$174.99
This product was last offered at the strikethrough price on 06-13-2026
Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.
Lifetime Replacement
