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affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Allows your JB4 to control a WMI pump and solenoid for dynamic progressive flow mapping!
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For most JB4 applications.
This product was last offered at the strikethrough price on
05-02-2026
Plug-and-Play flex fuel kit for your BMW!
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
This product was last offered at the strikethrough price on
05-02-2026
Red High Temp Nylon Tubing, Quick-Connect Fittings
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
This product was last offered at the strikethrough price on
05-02-2026
Heavy-duty yet compact tank that is compact and flexible allowing for a wide range of mounting on any flat vertical surface in the trunk.
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Know your exact ethanol content in real-time via the Fuel-It! or JB4 mobile app on your smartphone or tablet. For non Fuel-It! brand port injection configs.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fueling support up to 1000+ WHP!
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Know your exact ethanol content in real-time via the Fuel-It! or JB4 mobile app on your smartphone or tablet.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Know your exact ethanol content in real-time via the Fuel-It! or JB4 mobile app on your smartphone or tablet. For stock HPFP/no port injection configurations.
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Regain power loss & fuel economy from worn or failed ignition coils!
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Regain power loss & fuel economy from worn or failed ignition coils!
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Engages water-methanol system at 35PSI
Adjustable from 25-50psi
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Includes 2.5 gallon tank, red high temp nylon tubing, and quick-connect fittings
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Direct port injection plate for clean WMI installs
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With integrated fuel filter
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
06-06-2026
The worlds smallest universal regulator! Comes pre-set within precision tolerance to eliminate guesswork setting target pressure!
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This product was last offered at the strikethrough price on
01-22-2026