BMW Z1 Roadster 2.5 170
ECU Tuning in Coventry
BMW Z1 Roadster 2.5 170 in Coventry. 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 Z1 Roadster 2.5 170: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+21 bhp · +12%- Standard170 bhp
- Remapped191 bhp
Torque
+33 Nm · +15%- Standard222 Nm
- Remapped255 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
A stage 1 remap lifts the BMW Z1 Roadster 2.5 170 from 170 bhp to 191 bhp, and from 222 Nm to 255 Nm of torque. That is 21 bhp (12%) more power and 33 Nm (15%) more torque from software alone, available in Coventry.
These are indicative figures for a petrol BMW Roadster in good health. Your own results depend on the condition of the car.
BMW Z1 Roadster 2.5 170 power and torque after remapping
- Fuel: Petrol
- Standard power: 170 bhp, remapped: 191 bhp (+21 bhp, +12%)
- Standard torque: 222 Nm, remapped: 255 Nm (+33 Nm, +15%)
- Service: stage 1 ECU remap, fully dyno tested
What a remap does for a petrol BMW Roadster
On a petrol car the ECU controls fuelling, spark timing and any turbo boost. A remap re-calibrates those maps within safe limits, so the car responds more eagerly and pulls harder through the rev range.
How the BMW Z1 Roadster 2.5 170 compares
Of the 17 petrol Roadster engines in our data, this one comes 8th for power gain, which is exactly the Roadster petrol average.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 21 bhp and 33 Nm sits below that benchmark.
Remapping your BMW Roadster in Coventry
Remap Experts has a dedicated Coventry site, so you deal with a local team backed by a national network. We regularly work with drivers in Henley Green, Radford, Potters Green, Keresley and Edgwick and nearby areas of the West Midlands.
All our remaps are fully dyno tested, backed by a 30 day money back guarantee and covered by a lifetime software warranty. Request a quote online or call 0800 779 7864.
If you are closer to Birmingham, Leicester and Northampton, those neighbouring Remap Experts sites can help too.

Want these figures on your BMW Z1 Roadster 2.5 170?
Send your details and a specialist will confirm what is possible for your engine.
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 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
- BMW Z4 Roadster 2.5i 192petrol
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