BMW Z3 Roadster 3.2 M3 321
Chip Tuning Bath

BMW Z3 Roadster 3.2 M3 321 power and torque after remapping

• Fuel: Petrol
• Standard power: 321 bhp, remapped: 344 bhp (+23 bhp, +7%)
• Standard torque: 350 Nm, remapped: 395 Nm (+45 Nm, +13%)
• Service: stage 1 ECU remap, fully dyno tested

How chip tuning works on a petrol BMW Roadster

A petrol remap re-works the engine management calibration: air-fuel ratio, ignition advance and boost where fitted. The result is more power and a more immediate throttle, delivered by software rather than hardware changes.

BMW Z3 Roadster 3.2 M3 321 against other Roadster engines

Ranked by power gain against the other petrol Roadster engines (17 in total), the Z3 Roadster 3.2 M3 321 is 6th, 2 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 23 bhp and 45 Nm sits below that benchmark.

BMW Roadster ECU remapping in Bath

Whether you live in Bath or nearby, the Bath Remap Experts site is your local route to a quote. We regularly work with drivers in Midsomer Norton, Westbury, Swindon, Radstock and Melksham and nearby areas of the South West.

Every remap is fully dyno tested and comes with a 30 day money back guarantee and a lifetime software warranty. Call 0800 779 7864 for a quote.

If you are closer to Bristol, Somerset and Southampton, those neighbouring Remap Experts sites can help too.