Mercedes-Benz C63 S AMG (W205) ECU tune

Fits 2015–2018 · Stage 1 and Stage 2 · Mail-in

$2,499

Front three-quarter view of a matte grey Mercedes-AMG C63 S (W205) coupe with yellow stripes in a parking lot

Stage 1

630hp

650lb-ft

From 503 hp / 517 lb-ft stock

Stage
Horsepower+127 hp
503 hp factory630 hp tuned
Torque+133 lb-ft
517 lb-ft factory650 lb-ft tuned

Tuned figures are estimates; results vary.

Add-ons
  • You ship: your ECU, with your printed order confirmation
  • Turnaround: two business days from when your ECU arrives
  • Return shipping: paid by us

The car

About the Mercedes-Benz C63 S AMG (W205)

Mercedes-AMG built the W205 C-Class with two strengths of the same V8, and the C63 S is the stronger. It keeps the C63’s hand-built 4.0-liter twin-turbo engine, seven-speed AMG SPEEDSHIFT MCT and rear-wheel drive, then adds what the standard car goes without: an electronically controlled rear limited-slip differential, dynamic engine mounts that stiffen or soften with the driving, 19-inch wheels and 15.4-inch front brake discs.

The sedan arrived in the US in spring 2015 as a 2015 model. The coupe reached dealers in the summer of 2016 as a 2017 model, with flared fenders, a wider track and its own rear axle carrier, and a cabriolet joined it for the same model year.

Figures vary a little by body: Mercedes-Benz quotes 0–60 mph in 3.8 seconds for the coupe, 3.9 for the sedan and 4.0 for the cabriolet, with the limiter set at 180 mph on the sedan and coupe and 174 mph on the cabriolet.

Stage 1 is calibrated for the car as it left the factory and takes it from 503 hp and 517 lb-ft to 630 hp and 650 lb-ft on pump-grade fuel. Stage 2 is calibrated for supporting bolt-on modifications and high-octane fuel, for 650 hp and 670 lb-ft. The gearbox has its own controller and torque limits, so the optional TCU tune raises them to match, with sharper shifts and stronger clutch clamping.

More about Mercedes-Benz tuning

Figures & prices

Mercedes-Benz C63 S AMG (W205) tune figures by year

Factory and tuned horsepower and torque from our catalog, with prices for each stage and add-on.

Model yearFactoryStage 1Stage 2Add-ons
2015–2018503 hp / 517 lb-ft630 hp / 650 lb-ft
$2,499
650 hp / 670 lb-ft
$2,499
TCU tune $2,399

Tuned figures are estimates, not guarantees. Actual results vary with the car’s condition and modifications, fuel quality and octane, temperature, altitude and the dyno used. See our Terms of Service.

How it works

Mail-in tuning, start to finish

  1. 01

    Order online

    Choose your year, stage and add-ons and check out securely.

  2. 02

    Ship your ECU

    Pack it with your printed order confirmation email and send it to our Phoenix shop.

  3. 03

    We calibrate it

    Within two business days of it arriving.

  4. 04

    We ship it back

    Return shipping is on us. Reinstall and drive.

How mail-in tuning worksECU shipping instructions

FAQ

C63 S AMG (W205) tuning questions

More answers in our FAQ

Which years of the C63 S AMG (W205) does this tune fit?

Our online catalog lists Stage 1 and Stage 2 tunes for 2015–2018 Mercedes-Benz C63 S AMG (W205) models. Choose your year at the top of the page; the figures and prices are the same for every year.

How is the C63 S different from the C63 AMG?

Both use the same 4.0-liter twin-turbo V8 and seven-speed MCT. The S version is rated higher, uses an electronic rather than mechanical rear differential for faster, more precise control, and has dynamic engine mounts and bigger front brakes as standard. The C63 is covered on the C63 AMG (W205) page.

Does this page include the facelifted C63 S from 2019?

No. Our catalog lists the C63 S for 2015–2018. The updated car that followed has a nine-speed MCT, an AMG grille with vertical louvers and revised drive programs, and it is not part of this listing. Contact us if you would like to ask about tuning one.

What is the difference between Stage 1 and Stage 2 on the C63 S AMG (W205)?

Stage 1 is calibrated for the car as it left the factory and runs on pump-grade fuel. Stage 2 pairs the calibration with supporting bolt-on modifications such as downpipes and runs on high-octane fuel. On a 2018 car, Stage 1 takes it from 503 hp to 630 hp. Stage 2 takes it to 650 hp.

Do I need a TCU tune for the C63 S AMG (W205)?

A TCU tune is available as an add-on ($2,399). It raises the transmission’s torque limits and sharpens the shifts so the gearbox can handle the extra power. Ship your TCU in the same box as your ECU.

More Mercedes-Benz tunes

Other Mercedes-Benz models we tune

All Mercedes-Benz tuning

Contact

Talk to our tuning shop

Customers across the US order online and mail us their ECU. Our shop is at 952 W Melinda Ln, Suite D in north Phoenix (Deer Valley, 85027), and local owners are welcome to bring their car in. Call, visit or send us an inquiry.

HOURS Mon - Fri: 8AM - 5PM
Sat & Sun: Closed

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