B48 / B58 FlexFuel Kit

The bootmod3 Basic Flex Fuel Kit is now available for GEN1 and GEN2 BMW B48 / B58 engines for BMW and Toyota A90/A91 Supra applications. This kit offers a simple, cost-effective way to add flex fuel capability without cutting or fabricating fuel lines. Mounted in the engine bay, this kit uses specialty 5/16" plug-and-play fittings to interface directly with the OEM fuel system. No permanent modifications are required. Just install the kit, flash a bootmod3 Flex Fuel enabled OTS MultiMap or custom tune, and drive without ever worrying about the ethanol content in your fuel. Key Features: Installs in minutes with basic tools — no lift, cutting, or splicing required Uses specialty OEM-compatible fuel fittings for a clean plug-and-play setup Fully reversible — easily returns to stock without leaving a trace CANBUS-enabled ethanol content analyzer integrates with bootmod3 Compatible with bootmod3 OTS maps and custom tunes via CustomROM Includes Continental Flex Fuel Sensor, flex fuel harness, and CANBUS-ready wiring Designed for engine bay installation only — no routing under the car required Ideal for both daily-driven cars and performance builds, this kit provides a fast, affordable way to run E85 or any ethanol blend with confidence and reliability.