Subaru Legacy 2.5 170bhp tuning file
2008 (2014) · Petrol · ECU: Denso SH7058 DM
Stage 1 remap: +30 bhp & +60 Nm
ECU
Read methods
Available solutions
Our Stage 1 tuning file takes the Subaru Legacy 2.5 170bhp from 170 bhp and 230 Nm to 200 bhp and 290 Nm – that's +30 bhp (18%) and +60 Nm more. The remap file is written by a calibrator for your exact software on the Denso SH7058 DM and returned through the portal, normally within 5–15 minutes. Solutions such as DECAT, DTC Removal, Vmax 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. 170 → 200 bhp equals roughly 127 → 149 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 | 2457 CC |
| Compression ratio | 10.0 : 1 |
| Bore × stroke | 99.5 X 79.0 mm |
| Engine code | EJ253 |
Other Subaru Legacy 2008 (2014) engines
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