BMW 328d / X3 / 535D / X5 Stage 2 Tuning

BMW Diesel Stage 2 Tune + Transmission Tune — 328d · X3 · 535d · X5

Wake up the diesel torque BMW left on the table. Our Stage 2 flash transforms the way your car drives — instant turbo response, stronger mid- and top-end pull for confident passing, and gains of up to +80 whp and +140 wtq over stock. Most owners say it feels like a different car.

Now includes our new Stage 2 transmission tune — most tunes stop at the engine. We recalibrate the gearbox to match the new power, so shifts firm up and the whole drivetrain works together.

What you get:

• Up to +80 whp / +140 wtq (engine-dependent — more on the 3.0L 535d/X5)
• Instant turbo and throttle response
• Stronger mid- and top-end power for passing and spirited driving
• Up to 10% better MPG on the highway
• New Stage 2 transmission tune included

Built to stay reliable:

Tuned on 100% stock components — no hardware upgrades required. All emissions systems stay intact and functional. This is a refined, daily-drivable tune, not a stripped-out race file — proven on customer cars, not just our own.

How it works:

Flash it yourself from your garage through the OBD port in a scheduled remote session with our tuning team. Choose the BMW ENET cable to use with your own Windows PC (not Mac compatible), or borrow our loaner laptop (currently ~2–3 weeks out). We'll walk you through every step.

Fits:

• 2014–2018 BMW 328d & X3 (incl. xDrive)
• 2014–2018 X5
• 2014–2017 535d

Recent Customer Dyno here.