BMW N52 E9X Adaptive E85 Flex Fuel Conversion Kit

This is a true plug and play flex-fuel kit for your BMW E90/E91/E92/E93 328i, and it installs in about an hour with no tuning required.


Part Number: PFC-E90328-1

Original price was: $999.99.Current price is: $899.99.


The patented ProFlex Commander Adaptive Flex Fuel Conversion Kit for BMW N52 (E9X) 328i allows you to start making more power and running cooler with E85. This is a true plug and play flex-fuel kit for your BMW N52 (E9X) (E90/E91/E92/E93) 328i, and it installs in about an hour with no tuning required.

We know there are a couple of ways to run E85 with fixed map tunes or wide-band systems. If you are comparing these options here are some things to think about:

Why Chose AFD:

A fixed map E85 tune or switch map tune is never correct unless you run E85 race fuel from a barrel. If you go to the pump you willneverget 85% ethanol. The federal standard is 51-83%. If you run an E85 tune and you don’t have 85% ethanol you will always be washing your cylinder walls and will eventually ruin your piston rings. The patented ProFlex system is a real time adaptive flex fuel system that always delivers the right amount of fuel for the blend in your tank. E85 tunes are the dinosaur of E85 options. ProFlex is the future of flex fuel.

Wide-Band Systems:

A wide-band system uses historical data from your O2 sensors to try and figure fuel delivery based on correcting for rich or lean conditions. The problem with wide band systems is something called latency. Latency means that when your fuel percentages change it takes a long time for the computer to figure it out, and while that happens you will be running lean or rich. Fill up with E85 on the way to the track and you will be running gas fuel loads with ethanol in the tank, which can cause lean burn which can melt your pistons. Switch back to gas and you will run rich and wash your cylinder walls.

ProFlex Commander Pro:

The ProFlex system is a real time flex fuel system, which means it has zero latency. With ProFlex the fuel loads are correct 100% of the time. Wide band gets the job done, but ProFlex correctly adjusts faster and protects your engine better than anything out there.

ProFlex Commander Features for BMW N52 (E9X) 328i:

-Complete system – everything you need to run E85

-100% Dyno tested for safety, durability and power gains

-Easy DIY installation – Under an hour with common tools

-Patented BlendSense technology adjusts in real time with 30 millisecond refresh rate

-True flex fuel – switch from gas to ethanol and back anytime

-Improved injector management for more power on gas or E85

-7-10% More wheel HP and torque on E85 (dyno proven)

-No tuning required – Compatible with stock or performance gas tunes; instantly adapts to new tunes

-Cleaner emissions and cooler cylinder, oil and coolant temps

-Race grade fuel at the pump – high octane, low cost

-Compatible with power adders and bolt-ons

-ProFlex Connect app provides accurate, real-time ethanol content on your iPhone or Android device via BT Wireless communication

-Cold Start Plus – improves fuel atomization for easier starting in cold weather

This System Fits: All BMW N52 (E9X) 328i models

Choose Commander Pro(“PCP-” part 3)

Choose the ProFlex Commander Pro for your vehicle if you have aftermarket forced induction or aftermarket 600cc/60lb/hr or larger injectors. If you plan to make these upgrades later order the PRO. It will work fine with your existing set-up and will automatically adapt when you install your upgrades.

The ProFlex Commander product line is backed by a limited 12 month warranty.Learn more.

Additional Attributes:

GTIN: 00887753137906

Prop 65 Yes/No: No

Extended Information:

Life Cycle Status: Available To Order


Quantity of Each: 1

Package UOM: EA


Additional information

Weight3 lbs
Dimensions4 × 12 × 12 in


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