Mercedes-AMG GT Roadster for Cedar Performance ECU tuning

R190 / M178

Mercedes-AMG GT Roadster Tune

Mercedes-AMG GT Roadster ECU tunes covering 2017-2021 for R190 M178. Compare Cedar Performance stage pricing and published power targets.

View 5 tunes Browse Mercedes-AMG

Model years2017-2021

EngineM178

PlatformR190

Listed pricing$700 - $2,000

Tune catalog

Choose your Mercedes-AMG GT Roadster

Open the exact vehicle page to compare its stages, published targets, and order path.

2021 Mercedes-AMG GT Roadster Tune

M178 / R190 · Stage 1 / Stage 2 / Stage 3

$700 - $2,000 View tune

2020 Mercedes-AMG GT Roadster Tune

M178 / R190 · Stage 1 / Stage 2 / Stage 3

$700 - $2,000 View tune

2019 Mercedes-AMG GT Roadster Tune

M178 / R190 · Stage 1 / Stage 2 / Stage 3

$700 - $2,000 View tune

2018 Mercedes-AMG GT Roadster Tune

M178 / R190 · Stage 1 / Stage 2 / Stage 3

$700 - $2,000 View tune

2017 Mercedes-AMG GT Roadster Tune

M178 / R190 · Stage 1 / Stage 2 / Stage 3

$700 - $2,000 View tune

Calibration coverage

Mercedes-AMG GT Roadster tuning details

Available stagesStage 1 / Stage 2 / Stage 3

5 vehicle listings across 2017-2021.

Published outputHP / TQ

5 of 5 listings include published power targets; exact output varies by fuel and hardware.

Setup reviewStandard ordering

Listed stages can begin as standard orders; Cedar confirms ECU access and vehicle details before calibration.