Get your car’s factory BHP in seconds using your number plate. Then learn how to measure real power if you need accuracy before tuning.
A reg lookup shows your car’s factory BHP for the exact variant you own.
It does not measure real-world power today.
If you need accuracy, use an OBD-based check or a rolling road.
When to Use a BHP Reg Check
This guide focuses on one job. Checking factory BHP by registration plate.
Best for
- Confirming which power version you have before a remap
- Comparing trims when buying or selling
- Setting expectations for safe gains
Not for
- Proving your car’s current BHP
- Testing a modified car’s output
- Diagnosing why it feels slow
Need accuracy instead?
How to perform a BHP check | OBD vs rolling road accuracy
How to check BHP by registration plate
All UK vehicles sit in databases that store manufacturer specs. Using your number plate, our Remap Calculator pulls the factory BHP for your exact vehicle variant and shows estimated gains.
- Open the Remap Calculator
- Enter your registration
- View factory BHP, estimated torque, and expected remap gains
Send your registration on WhatsApp and we’ll reply with your factory figures and likely Stage 1 gain range.
WhatsApp 07404 022260
Why a reg lookup beats “search by model”
Many models have multiple power outputs with the same badge and engine size. A reg lookup reduces guesswork.
A VW Golf 1.6 TDI can be 90bhp, 105bhp, or 115bhp depending on the ECU variant.
A registration check helps identify the correct one.
Why your real-world power can feel lower
A factory figure does not mean your car makes that number today. These issues can reduce output even without obvious warnings.
- Blocked DPF and failed regeneration
- EGR soot build-up and restricted intake flow
- Air metering issues like MAF/MAP drift
- Boost leaks or sticky turbo control
- Overdue servicing and poor fuel
If you think you’re down on power, start here:
Diagnostic checks before remap | Engine diagnostics | MAF/MAP power killers
When you should measure power instead
If you want your car’s current output, you need a test. Two common options:
OBD-based BHP estimate
- Useful for quick comparison and trend checking
- Quality depends on data source and method
- Best used with supporting diagnostics
Rolling road (dyno)
- Best for measured wheel power and repeatable runs
- Ideal for modified cars
- Good for before and after comparisons
Read next:
How to perform a BHP check on your car | OBD vs rolling road BHP check accuracy
What BHP means for a Stage 1 remap
Once you’ve confirmed your factory figure, you can plan your next step:
- Use the Remap Calculator to estimate gains
- Book a Stage 1 remap for safe torque and response gains
- Fix health issues first if the car feels inconsistent
| Vehicle | Stock | Typical Stage 1 | Best use |
|---|---|---|---|
| Ford Transit Custom 2.0 TDCi | 130bhp | 180bhp | Pulling power, loaded driving |
| BMW 320d | 163bhp | 210bhp | Mid-range response |
| Vauxhall Insignia | 140bhp | 185bhp | Everyday driveability |
Figures vary by engine code, condition, and hardware. We confirm compatibility and check health first.
CTA: get your factory figures and next-step advice
Send your reg and tell us what you want from the car. We’ll reply with the factory BHP, likely gain range, and what to check before booking.
201 King Street, Fenton, Stoke-on-Trent, ST4 3ER
Serving Stoke-on-Trent, Staffordshire, the Moorlands, and Cheshire East.
Related pages
- How to perform a BHP check
- OBD vs rolling road accuracy
- Stage 1 remap
- Checks before remap
- Engine diagnostics
Check car BHP by reg FAQs
Can I check my BHP using just my reg?
Yes. A reg lookup returns the factory BHP for your exact vehicle variant. Use the Remap Calculator.
Does a reg check show my real BHP today?
No. It does not measure output. If you want accuracy, use OBD or a rolling road: how to perform a BHP check.
Why does the same model have different BHP?
Manufacturers ship multiple ECU variants and power maps. A registration lookup confirms which one you have.
My car feels slower than the factory figure. What next?
Start with diagnostics and airflow checks. DPF restriction, EGR soot, boost leaks, and sensor drift can all reduce output. See: diagnostic checks before remap.
