BMW 3 serie 335i - N54 - 306bhp tuning file
E90/E91 (2005–2010) · Petrol · ECU: Siemens/Continental MSD81 / Siemens/Continental MSD80
Stage 1 remap: +64 bhp & +100 Nm
ECU
Read methods
Available solutions
Our Stage 1 tuning file takes the BMW 3 serie 335i - N54 - 306bhp from 306 bhp and 400 Nm to 370 bhp and 500 Nm – that's +64 bhp (21%) and +100 Nm more. The remap file is written by a calibrator for your exact software on the Siemens/Continental MSD81 / Siemens/Continental MSD80 and returned through the portal, normally within 5–15 minutes. Solutions such as DECAT, DTC Removal, FLAPS, Pop & Bang Crackle map can go into the same file.
Who is this remap for?
Naturally aspirated petrol engines gain less than turbo engines, but a remap still improves throttle response and smooths out flat spots in the power delivery. 306 → 370 bhp equals roughly 228 → 276 kW.
Figures are guide values from our rolling road and comparable vehicles. Results depend on the vehicle's condition, hardware and fuel quality. Remapping in the UK: let your insurer know about the modification. DPF, EGR and AdBlue solutions are supplied for off-road and motorsport use only and are not legal for use on UK roads.
Engine specification
| Fuel type | Petrol |
| Engine size | 2979 CC |
| Compression ratio | 10.2 : 1 |
| Bore × stroke | 84.0 X 89.6 mm |
| Engine code | N54B30 |
Other BMW 3 serie E90/E91 (2005–2010) engines
Try our tuning file service today
Open a free account on the file service portal, claim 5 test credits and upload your first read – most files are back with you in under 15 minutes.