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BMW 840i
B58 3.0 Twin-Turbo Inline-6 — G14 / G15 / G16
The 840i coupe, convertible, and Gran Coupe are stunning grand tourers powered by BMW's brilliant B58 engine. A bespoke remap unlocks serious performance gains while maintaining the effortless refinement these cars are known for.
Tuning Packages
Stage 1
440-450
BHP
650-700
NM Torque
- ✓ Bespoke ECU remap
- ✓ Transmission tune available
- ✓ Before & after dyno testing
- ✓ No hardware modifications required
⏱ Turnaround: 4–6 hours (same day)
Stage 2
460-470
BHP
700
NM Torque
- ✓ Upgraded intake & intercooler recommended
- ✓ Downpipe upgrade recommended
- ✓ Transmission tune included
- ✓ Before & after dyno testing
⏱ Turnaround: 2–4 days
Book Your 840i In Now
Tell us about your 840i and what you're looking to achieve.
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Select Your Service
What are you looking to have done on your BMW 840i (B58)?