HPFP Upgrade Only = This kit contains everything you need to upgrade your HPFP and includes the HPFP, adapter plate, harness adapter, fuel line, and hardware.

HPFP Upgrade with BMS CANflex Kit = This kit contains the HPFP upgrade and adds a flex fuel kit to your selection. This variant integrates the new BMS CANflex LED ECA that includes both a digital display box to monitor ethanol mixtures as well as a voltage output for those running a JB4. Note the display box is not weather proof and must be routed either inside the glove box or under a cover in the engine bay for protection from the elements. This kit also supports CANbus operation and our 10bar low fuel pressure sensor kit making it ideal for future expansion.

HPFP Upgrade with Fuel-It! Bluetooth Kit = This kit contains the HPFP upgrade and adds a flex fuel kit to your selection. This variant utilizes the original flex fuel kit which includes both Bluetooth for the free Fuel-It! app and a voltage output for those running a JB4. This compact unit is completely weatherproof and does not require any special routing.

HPFP Upgrade for existing Flex Fuel Kit = If you're already running one of our flex fuel kits, this option will upgrade your HPFP while keeping your flex fuel kit.

HPFP Install Kit Only = This kit contains everything you need to upgrade your HPFP and includes adapter plate, harness adapter, fuel line, and hardware. This kit does NOT include an HPFP.

HPFP Install Kit Only with BMS CANflex Kit = This kit contains the HPFP Install Kit (HPFP NOT included) adds a flex fuel kit to your selection. This variant integrates the new BMS CANflex LED ECA that includes both a digital display box to monitor ethanol mixtures as well as a voltage output for those running a JB4. Note the display box is not weather proof and must be routed either inside the glove box or under a cover in the engine bay for protection from the elements. This kit also supports CANbus operation and our 10bar low fuel pressure sensor kit making it ideal for future expansion.

HPFP Install Kit Only with Fuel-It! Bluetooth Kit = This kit contains the HPFP Install Kit (HPFP NOT included) adds a flex fuel kit to your selection. This variant utilizes the original flex fuel kit which includes both Bluetooth for the free Fuel-It! app and a voltage output for those running a JB4. This compact unit is completely weatherproof and does not require any special routing.

HPFP Install Kit Only for existing Flex Fuel Kit = If you're already running one of our flex fuel kits this option will allow you to upgrade your HPFP while keeping your flex fuel kit. This kit does NOT include an HPFP.

FAQ:

What is the difference between this pump and CPI?

Both CPI and the upgraded high pressure pump are meant to address the same issue, high fuel pressure dropping under higher boost levels on E85 mixtures. Without CPI on E40 fuel you're limited to around JB4 map3 or map4 boost levels (~18psi) before fuel pressure drops out. With this pump you'll be able to run JB4 map5 boost levels and above (~21psi) on E40 with the factory flash.

CPI is generally less expensive but a little more involved to install and requires an 1/8" NPT bung to mount the nozzle. CPI requires a JB4 to control it. CPI may require some JB4 setting tweaks to get the right fuel volume for your specific car and situation. The high pressure pump is more of an install and forget it type solution with the main tradeoff being the higher cost.

Can I run straight E85 with this pump?

The pump itself is the same pump used in our BMW B58 Stage2 fuel pump kit which supports well over 600whp on straight E85. But running heavier ethanol mixtures requires tuning changes in addition to the fuel pump. While up to around E50 is relatively easy to dial in as you increase the E85 mixture certain changes to the fuel scalars, AFR mapping, spark dwell, cranking tables, ignition advance, and others are required for the car to operate properly. For JB4 customers these changes are addressed in our JB4 back end flash maps loaded via the EK1.