Wirelessly connect your JB4 to your phone!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering. For use with JB4 only
Plug & play power — gains starting at 30whp/40lb-ft on a stock car!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Not for sale or use in the state of California.
Features CAN-Bus connectivity for more advanced tuning — gain up to 45hp/45lb-ft on a stock car, 90hp/70lb-ft on a modified car
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Not for sale or use in the state of California.
Features CAN-Bus connectivity for more advanced tuning — gain up to 45hp/45lb-ft on a stock car, 100hp/70lb-ft horsepower on a modified car
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Not for sale or use in the state of California.
Features CAN-Bus connectivity for more advanced tuning — gain up to 35hp/40lb-ft on a stock car, 90hp/70lb-ft on a modified car
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Not for sale or use in the state of California.
Brand:
ES#:
3514909
Mfg#:
JB4-MQB-1.8
Ships on Jun 22, 2026
$479.00 USD
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