Plug & play power — gain up to 40 horsepower in under one minute! 50 state legal performance!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms CARB Approved - Legal in All 50 States! CARB certified for sale in all 50 states
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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Plug & play power — gain up to 60 horsepower on a stock car, 100+ horsepower on a modified car! For 2011 model year vehicles.
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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For Vehicles with Type A Harness & Pneumatic Wastegate only; Not for sale or use in the state of California.
Brand:
ES#:
4877313
Mfg#:
JB4F10A
In Stock
ON SALE!
SAVE 12%
$529.00
This product was last offered at the strikethrough price on 05-02-2026
Plug & play power — gain up to 100 horsepower on a stock car!
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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5373845
Mfg#:
JB4-N63-F-B
In Stock
ON SALE!
SAVE 12%
$599.00
This product was last offered at the strikethrough price on 05-02-2026
Plug & play power — gain up to 100hp on pump gas and up to 207whp on higher octane or E85 mixtures
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5375484
Mfg#:
JB4S68G0567
Ships on Jun 30, 2026
$899.00
This product was last offered at the strikethrough price on 05-19-2026
Plug & play power — gain up to 125whp on pump gas and up to 260whp on higher octane or E85 mixtures
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5375445
Mfg#:
JB4G09XMS68
Ships on Jun 30, 2026
$899.00
This product was last offered at the strikethrough price on 05-19-2026
Adds a high fuel pressure connection to the JB4 for S58 platforms, allowing direct control of fuel pressure and fuel trims
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Plug & play power — gain up to 93WHP on pump gas and up to 135WHP on higher octane or E85 mixtures
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Lifetime Replacement
