BMW Z4 Roadster M 343
Engine Tuning in Sussex

BMW Z4 Roadster M 343: remap at a glance

• Fuel: Petrol
• Standard power: 343 bhp, remapped: 368 bhp (+25 bhp, +7%)
• Standard torque: 365 Nm, remapped: 410 Nm (+45 Nm, +12%)
• Service: stage 1 ECU remap, fully dyno tested

How engine tuning works on a petrol BMW Roadster

Petrol engines are remapped by refining fuelling, ignition timing and, on turbocharged engines, boost control. Done carefully this releases performance the manufacturer left in reserve, giving sharper throttle response and a stronger top end.

How the BMW Z4 Roadster M 343 compares

Of the 17 petrol Roadster engines in our data, this one comes 3rd for power gain, which is 4 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 25 bhp and 45 Nm sits below that benchmark.

BMW Roadster chip tuning in Sussex

Remap Experts Sussex is part of the UK-wide Remap Experts network. We regularly work with drivers in Lewes, Rye, Worthing, Newhaven and Horsham and nearby areas of the South East.

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 Eastbourne, Crawley and Surrey, those neighbouring Remap Experts sites can help too.