Audi A4 Cabrio RS4 42 V8 Stage 1: 420→444hp | DMS Tuned

Audi A4 Cabrio RS4 42 V8 Stage 1: 420→444hp

Audi A4 Cabrio RS4 42 V8 Stage 1: 420hp → 444hp, 430→459Nm. Custom calibration written for your car and proven on our dyno, not an off-the-shelf file. From…

Audi A4 Cabrio Stage 1: 420 hp → 444 hp

Factory output for the Audi A4 Cabrio RS4 42 V8 is 420 hp and 430 Nm. A Stage 1 remap targets 444 hp and 459 Nm — 24 hp (+6%) and 29 Nm (+7%).

Those are the figures we work to on this engine. They are a starting point, not a promise: the number we hand back is the one your car makes on our dyno, measured before and after on the same day, in the same conditions.

What 24 hp changes on the road

Taking the RS4 42 V8 from 420 hp to 444 hp, with torque from 430 Nm to 459 Nm, is felt less as a bigger top number than as a shorter wait for it — the engine answers the throttle sooner and holds the pull further up the rev range.

Tell us the exact engine code and we will say precisely what is on the table for your car before you commit to anything.

What Stage 1 involves on an Audi A4 Cabrio

We read the ECU, log the car as it stands, and put it on the dyno to confirm the 420 hp baseline — a tired or faulty engine gets diagnosed before it gets mapped, not after.

The calibration is written for your car, not pulled from a file library. We adjust fuelling, ignition timing and throttle mapping, then re-run the dyno to verify the 444 hp and 459 Nm figure and check knock, lambda and temperatures under load.

Turnaround is same-day for most cars. Stock file is archived, so the car can go back to standard whenever you want.

Which Audi A4 Cabrio this covers

These figures are for the RS4 42 V8 as fitted 2006 onwards. Engine code and ECU type decide what is possible, so send us the registration or VIN and we will confirm the exact variant before you book anything.

Audi A4 Cabrio remap price and booking

Stage 1 for the Audi A4 Cabrio RS4 42 V8 starts at €450, including the dyno runs before and after and the stock-file archive.

We work from Leoforos Karamanli 127, Artemida 19016, east of Athens, and tune remotely across Europe where the ECU allows it. WhatsApp +30 697 728 8810 with your registration for a straight answer on your car.

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