BMW Z4 Roadster 2.5si 218
ECU Remapping in Hull

BMW Z4 Roadster 2.5si 218: remap at a glance

• Fuel: Petrol
• Standard power: 218 bhp, remapped: 240 bhp (+22 bhp, +10%)
• Standard torque: 250 Nm, remapped: 285 Nm (+35 Nm, +14%)
• Service: stage 1 ECU remap, fully dyno tested

How ECU remapping works on a petrol BMW Roadster

Factory petrol calibrations leave margin for poor fuel and hot climates. A remap tunes the ignition, fuelling and boost maps to make better use of that margin, which shows up as livelier throttle response and stronger acceleration.

How the BMW Z4 Roadster 2.5si 218 compares

Of the 17 petrol Roadster engines in our data, this one comes 7th for power gain, which is 1 bhp above the Roadster petrol average of 21 bhp.

Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 22 bhp and 35 Nm sits below that benchmark.

Remapping your BMW Roadster in Hull

Remap Experts Hull is part of the UK-wide Remap Experts network. We regularly work with drivers in Hornsea, Pocklington, Market Weighton, Hull and Goole and nearby areas of Yorkshire & Humber.

Each remap is dyno tested before it is signed off, and is protected by a 30 day money back guarantee and a lifetime software warranty. Ask for a quote online or by phone.

If you are closer to Doncaster, Leeds and Lincolnshire, those neighbouring Remap Experts sites can help too.