BMW Z4 Roadster 3.0si 265
Engine Tuning Bath
BMW Z4 Roadster 3.0si 265 in Bath. Standard and remapped figures for this exact engine.

- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Remap stats
BMW Z4 Roadster 3.0si 265: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+27 bhp · +10%- Standard265 bhp
- Remapped292 bhp
Torque
+45 Nm · +14%- Standard315 Nm
- Remapped360 Nm
Tuning figures are indicative estimates, not guaranteed results. Actual results depend on the condition of the vehicle.
Prices from £130
Fully dyno tested | 30 day money back guarantee | Lifetime software warranty
The BMW Z4 Roadster 3.0si 265 produces 265 bhp and 315 Nm of torque as standard. After a stage 1 ECU remap in Bath, our figures show 292 bhp and 360 Nm: a gain of 27 bhp (10%) and 45 Nm (14%).
Treat the numbers as a guide: they are stage 1 estimates for a petrol BMW Roadster in sound condition, and individual cars differ.
BMW Z4 Roadster 3.0si 265 remap figures
- Fuel: Petrol
- Standard power: 265 bhp, remapped: 292 bhp (+27 bhp, +10%)
- Standard torque: 315 Nm, remapped: 360 Nm (+45 Nm, +14%)
- Service: stage 1 ECU remap, fully dyno tested
Petrol BMW Roadster: what changes with a remap
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 Z4 Roadster 3.0si 265 against other Roadster engines
Of the 17 petrol Roadster engines in our data, this one comes 1st for power gain, which is 6 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 27 bhp and 45 Nm sits at or above that benchmark.
BMW Roadster vehicle tuning in Bath
Drivers in Bath book through the Bath Remap Experts site, one of our local sites across the UK. 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.

Ready for engine tuning on your BMW Roadster in Bath?
Send your registration and we will confirm the exact remap, the price and the next available slot.
Included
What we can do for your BMW Roadster
Stage 1 ECU remap
Add power and torque and improve driveability. Software only, tailored to your engine.
ECU repair and testing
Is your engine control unit playing up? We can arrange testing and repair, and source replacement ECUs.
DPF and EGR fault repair
Persistent DPF or EGR errors diagnosed and resolved in accordance with all current road-legal standards.
Engine carbon cleaning
Fault finding and carbon cleaning for the inside of your engine, typically completed in a couple of hours.
Same model
Other Roadster engines
- BMW Coupe Z3 2.8 193petrol
- BMW Coupe Z3 3.0 231petrol
- BMW Z1 Roadster 2.5 170petrol
- BMW Z3 Roadster 1.8 115petrol
- BMW Z3 Roadster 1.9 118petrol
- BMW Z3 Roadster 2.0 150petrol
- BMW Z3 Roadster 2.8 193petrol
- BMW Z3 Roadster 3.0 231petrol
- BMW Z3 Roadster 3.2 M3 321petrol
- BMW Z4 Roadster 2.0i 150petrol
- BMW Z4 Roadster 2.2i 170petrol
- BMW Z4 Roadster 2.5i 177petrol
From quote to remapped in four steps
No jargon and no pressure. Here is exactly what happens.
- 01
Find your vehicle
Choose your make, model and engine to see the standard and remapped power and torque for your car.
- 02
Request a quote
Send your details and we contact you by SMS or call back with a quote. No obligation.
- 03
Book with your local site
Your local Remap Experts site arranges the remap and answers any questions about your car.
- 04
Remapped and dyno tested
Your remap is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
Everything you need to know
Plain-English guides to how remapping works, what it does and what to check first.
- 6 min read
What is ECU remapping?
The engine control unit, what a remap changes, and who it suits.
Read guide - 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
Read guide - 6 min read
How ECU remapping works, step by step
From reading the original software to the dyno test.
Read guide