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BMW 340i tuning

BMW 340i remapping in Bristol, Somerset and South Wales

The F30 340i was the first 3 Series with the B58, and it is a superb car to tune: understated, practical and very quick once calibrated. We come to you from our Weston-super-Mare base, across Bristol, Somerset, Gloucestershire, Wiltshire, South Wales and parts of Devon and Dorset.

BMW 340i generations we tune

Factory figures vary by market and year. We confirm your car's exact ECU and software before quoting.

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F30/F31 340i (2015–2019)

B58 3.0 turbo straight-six, 326hp and 450Nm.

What a remap does on the 340i

Factory software holds the 340i back compared with later B58 cars, so Stage 1 makes a big difference to mid-range torque and overtaking pace.

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Because it is a practical saloon or Touring, we calibrate for smooth, everyday drivability as well as performance.

Gearbox tuning

Most 340is use the ZF 8-speed automatic. A matched gearbox map raises torque limits and gives quicker shifts in Sport.

Examples of our BMW 340i work

Related BMW pages

Common questions

Is the 340i the same engine as the M340i?

Both use the B58, but the M340i has a later version with higher factory output.

Will a remap make the 340i harder to drive?

No. We calibrate for smooth delivery, so it stays just as easy to drive day to day.

Recent BMW jobs

BMWs we have tuned, with their figures.

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Customer feedback

What customers say on Google

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Talk through your vehicle

Find out what your car can do.

Share your registration, mileage and what you would like to improve. We're always online to quote and reply, and we'll confirm what is suitable before booking, then come to you. Fully mobile from our Weston-super-Mare base across Bristol, Somerset, Gloucestershire, Wiltshire, South Wales and parts of Devon and Dorset.

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