Bluetooth Flex Fuel Kit F Chassis BMW B38, B46, B48, B58 Engine 328i (F34) map switching and adjustment Support

map switching and adjustment Support is also provided for the IS38 turbo upgrade providing for outputs past the 400hp level

Enlarged air box design for improved air capacity

Featuring a 4-inch intake pipe and performance air filter

1 Turbo S JB4 Dyno 91

Upgrade your Mercedes-Benz with the MST Cold Air Intake System to experience a blend of enhanced performance

Bluetooth Flex Fuel Kit F Chassis BMW B38, B46, B48, B58 Engine 328i (F34) map switching and adjustment SupportKnow your exact ethanol content in real time with our new LED display or by using the BMS CANflex, Fuel It! or JB4 mobile app on your smartphone or tablet. If you're running E85 or ethanol mixes in your B58, B48, B46, or B38 equipped BMW, you need this kit! As many of you know the BMW motors can be very picky about how much ethanol you run to achieve peak performance but not run lean. Consequently, we have put together a kit enabling you to easily