What It Is
An upgrade path for BMW 328d owners who already have KermaTDI's Stage 1 tune and want to move up to Stage 2, unlocking additional torque and horsepower along with a matching transmission recalibration.
Performance Gains
Why the Transmission Tune Matters
Most tunes stop at the engine. KermaTDI's Stage 2 also recalibrates the gearbox to match the new power output, so shifts firm up and the whole drivetrain works together rather than the transmission lagging behind the engine's added capability.
Built for Daily Driving
This is a refined, daily-drivable tune, not a stripped-out race file, proven on customer cars rather than only in-house test vehicles. It's tuned on 100% stock components, with no hardware upgrades required, and all emissions systems stay intact and functional.
How It's Installed
Flash it yourself from your garage through the OBD port, in a scheduled remote session with KermaTDI's tuning team. Use your own Windows PC with a BMW ENET cable (not Mac compatible), or borrow KermaTDI's loaner laptop if needed.
Fitment
BMW 328d, previously tuned to KermaTDI Stage 1.
Common Questions
Do I need any hardware upgrades to install Stage 2?
No, it's tuned entirely on stock components, with no hardware changes required.
Does this include a transmission tune too?
Yes, KermaTDI's Stage 2 recalibrates the gearbox to match the added engine output, so shifts firm up alongside the power gain.
Do I need to remove my emissions equipment?
No, the opposite. All emissions systems stay intact and functional with this tune.
What do I need for the remote tuning session?
A Windows PC (not Mac compatible) and a BMW ENET cable, or you can borrow KermaTDI's loaner laptop if one is available.
