Fits 2015–2020 · Stage 1 and Stage 2 · Mail-in
$1,799
Stage 1
420hp
485lb-ft
From 362 hp / 384 lb-ft stock
The car
The GLC43 is the six-cylinder AMG of the first-generation GLC, sold from 2017 both as the five-seat SUV and as the GLC Coupe with its sloping roofline, and positioned below the V8 GLC63. The GLC range itself had begun a year earlier, for 2016, with the four-cylinder GLC300 only.
It uses the AMG-enhanced 3.0-liter twin-turbo V6, a nine-speed automatic and AMG Performance 4MATIC with a 31:69 front-to-rear split, and its AMG Sport Suspension is based on AIR BODY CONTROL air springs. Mercedes-Benz quotes 0–60 mph in 4.5 to 4.8 seconds depending on body and year, with a 130 mph limit.
For 2020 the SUV gained the updated design, with an AMG-specific grille, new exterior lights, a more expressive front bumper and round twin tailpipes, along with the MBUX system, the AMG DYNAMICS agility control and more output from the V6.
Stage 1 is calibrated for the car as it left the factory and takes it from 362 hp and 384 lb-ft to 420 hp and 485 lb-ft on pump-grade fuel. Stage 2 is calibrated for supporting bolt-on modifications and high-octane fuel, for 455 hp and 520 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.
Figures & prices
Factory and tuned horsepower and torque from our catalog, with prices for each stage and add-on.
| Model year | Factory | Stage 1 | Stage 2 | Add-ons |
|---|---|---|---|---|
| 2015–2020 | 362 hp / 384 lb-ft | 420 hp / 485 lb-ft $1,799 | 455 hp / 520 lb-ft $1,799 | TCU tune $2,399 CPC tune $2,999 |
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
Choose your year, stage and add-ons and check out securely.
Pack it with your printed order confirmation email and send it to our Phoenix shop.
Within two business days of it arriving.
Return shipping is on us. Reinstall and drive.
FAQ
More answers in our FAQ
Our online catalog lists Stage 1 and Stage 2 tunes for 2015–2020 Mercedes-Benz GLC43 AMG (X253 / C253) models. Choose your year at the top of the page; the figures and prices are the same for every year.
The GLC range began with the GLC300 for 2016, and the GLC43 SUV and coupe followed for 2017. Both have the twin-turbo V6 and air springs; cars from 2020 carry the updated design and uprated engine. Our catalog lists the GLC43 up to 2020.
The GLC63 and GLC63 S, each with its own page, use a handcrafted AMG 4.0-liter twin-turbo V8, the AMG SPEEDSHIFT MCT nine-speed and AMG Performance 4MATIC+ with variable torque distribution. The GLC43 has the twin-turbo V6, a torque-converter nine-speed and a set 31:69 split.
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 2020 car, Stage 1 takes it from 362 hp to 420 hp. Stage 2 takes it to 455 hp.
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
Contact
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.