2020 Mercedes AMG CLA 45

Mercedes
AMG CLA 45
2020 ECU TUNE

Horsepower Gain
+0
Torque Gain (lb-ft)
+0

We specialize in extracting hidden performance. Our custom calibrations add up to +108HP to your 2020 Mercedes AMG CLA 45, software only, fully reversible.

Stage 1

Available

ECU Calibration — Software Only

Horsepower
382 Stock
475 Tuned
+93 HP(24.3%)
Torque (ft-lbs)
354 Stock
419 Tuned
+65 lb-ft(18.4%)
Stock HP Tuned HP Stock TQ Tuned TQ

Stage 2

Available

ECU Calibration — Software Only

Horsepower
382 Stock
490 Tuned
+108 HP(28.3%)
Torque (ft-lbs)
354 Stock
480 Tuned
+126 lb-ft(35.6%)
Stock HP Tuned HP Stock TQ Tuned TQ

Available Add-ons

Enhance your calibration

ECU Unlock $600
CPC Calibration $2000
AMG 8SPD DCT TCU Calibration $1500

In-House Powertrain Calibration

Mercedes equips the 2020 Mercedes AMG CLA 45 with a 2.0L Turbocharged Inline-4 (M139; 1,991 cc); its original calibration is rated at 382 HP / 387 PS and 354 lb-ft / 387 Nm.

The Stage 1 increase is up to 93 HP / 94 PS with 65 lb-ft / 88 Nm, which places estimated output near 475 HP / 481 PS and 419 lb-ft / 475 Nm.
The Stage 2 increase is up to 108 HP / 109 PS with 126 lb-ft / 171 Nm, which places estimated output near 490 HP / 496 PS and 480 lb-ft / 558 Nm.

ECU Unlock
An ECU unlock is the process of removing the manufacturer's read/write protection on a vehicle's engine control unit, giving tuners access to the internal calibration data using flash tools. This restores the ability to read the original calibration, modify maps and parameters, and write custom software back to the unit, forming the foundation that other services, like map switching or custom calibration, are built on top of.

CPC Calibration
Our AMG CPC Calibration Upgrade optimizes torque monitoring to support increased engine output and reduce unnecessary torque intervention.
It maintains coordinated communication between powertrain controllers for more consistent performance under high loads.

AMG 8SPD DCT TCU Calibration
Our AMG TCU Calibration Upgrade delivers faster gear changes, more responsive downshifts, and improved gear holding during acceleration.
Optimized to complement our ECU calibration, it improves power delivery while maintaining smooth everyday drivability.

Customer Reviews

What our clients say

★★★★★

"If your looking for the fastest and most Reliable McLaren in the World then M3P is your place! Ask for Nate he was very helpful and Knowledgeable and everything turned out just like I wanted. Highly Recommend!!"

Joshua Arrowood

★★★★★

"very professional and they know their stuff! highly recommend! call nate, he will take care of you! thanks again guys."

Rusty Smith

★★★★★

"M3P took my McLaren to the next level! Safa and Nate were incredibly professional and provided work that is second to none. If you are looking to add more juice to your McLaren or AMG, M3P is the place to be. Thanks guys for the great work."

Nick Childers

★★★★★

"I have been dealing with Safa for 2 years since owning my McLaren 650S. He is the reason for my continued McLaren ownership as I confidently know I am in great hands with someone knowledgeable and trustworthy! I'm tuned by Safa and the car has ran flawless for 10k+ miles. In addition his crew Nate and Josh are awesome guys and they all feel like family. Couldn't ask for a better shop or people to deal with. Proud to be Mega Strong 💪"

Corey Hamilton

★★★★★

"I brought my AMG in for a bit of routine maintenance, as well as some slight performance modifications. 10/10 recommend, Mega 3 Performance is exceedingly competent on a variety cars and took fantastic care of my car. Their fabrication work is next level, and their technicians are very knowledgeable. I will be using Mega 3 for all of my performance and maintenance moving forward over the Mercedes dealership."

Michael Whatley

Frequently Asked Questions

Common questions about tuning the 2020 Mercedes AMG CLA 45.

  • A Stage 1 ECU calibration on the 2020 Mercedes Amg Cla 45 can deliver up to +93 Horsepower and +65 ft-lbs of Torque over the stock figures. Actual results may vary, but expect noticeably improved acceleration, a smoother powerband, and sharper throttle response.

  • Our Stage 1 calibration is designed to operate within safe engine parameters without triggering fault codes. We recommend consulting with us about your specific situation and warranty coverage before proceeding.

  • Our Stage 1 calibration for the 2020 Amg Cla 45 is a software-only upgrade. You do not need any mechanical modifications, making it a clean, reversible performance improvement that works on your stock vehicle.

  • No, our custom ECU calibration for the 2020 Amg Cla 45 is engineered to enhance throttle response and smooth out the powerband. The result is better drivability in everyday traffic, as well as a more engaging experience during spirited driving.

Contact

Ready to transform your car's performance? Complete the form and one of our knowledgeable representatives will respond via email to schedule a consultation for phone or in-person meeting about your ECU tuning , TCU upgrades , or performance package needs.

15+ Years Experience
4000+ Tuning Projects
500+ McLaren Projects
Switch to metric units (PS / Nm)