BMW 3 Series (E9X) 2007-2009 320d 174bhp remap figures
Stock, this 2007-2009 BMW 3 Series diesel (2.0L) produces 174bhp and 350Nm. Our expected figures for a Stage 1 remap are 238bhp and 448Nm, an expected gain of up to 64bhp and 98Nm.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 174 bhp | 238 bhp | +64 bhp |
| Torque | 350 Nm | 448 Nm | +98 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 174 bhp | 350 Nm | |
| Stage 1Maximum software-only performance | 238 bhp | 448 Nm | +64 bhp +98 Nm |
| Stage 1 EcoPerformance with economy in mind | 222 bhp | 440 Nm | +48 bhp +90 Nm |
| Eco mapEconomy first | 217 bhp | 435 Nm | +43 bhp +85 Nm |
Who is the Stage 1 map for?
- Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
- Daily and motorway drivers who want the engine to feel less strained at cruising speed.
- Anyone who wants the biggest software-only change we list for this engine.
What this means for your 3 Series
Diesel remaps work mainly on boost pressure, fuel delivery and torque limiters, which is why the Nm gain is usually the figure you feel in everyday driving, particularly when overtaking or towing.
The ECU recorded for this variant is a Bosch EDC17CP02. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the BMW 3 Series 320d 174bhp?
We expect 238bhp and 448Nm against 174bhp and 350Nm as standard: up to +64bhp and +98Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the BMW 3 Series 320d 174bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 222bhp and 440Nm expected. The Eco map is economy first: 217bhp and 435Nm. Both still sit above the standard 174bhp and 350Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More BMW 3 Series figures
Other diesel variants
- 320d ED 181bhp 2010-2011
- 320d 163bhp 2005-2006
- 320d ED 160bhp 2010-2011
- 325d 194bhp 2005-2009
- Alpina D3 197bhp 2005-2008
- 320d 150bhp 2005-2011
- 325d 201bhp 2010-2011
- 318d 140bhp 2007-2011
- 330d 227bhp 2005-2008
- 318d 120bhp 2005-2007
All diesel 3 Series (E9X) variants · 3 Series (E9X) 2005-2011 overview · All BMW figures