Stop Letting Your Transmission Hold Back Your Alfa Romeo Stelvio

Your Alfa Romeo Stelvio is engineered to perform.

Sharp chassis
Responsive turbo engine
Italian attitude

But your transmission software?

It was calibrated for emissions, warranty departments, and the average commuter.

If you’ve tuned your engine or plan to, your transmission may still be electronically limiting torque and interfering with how the car delivers power.

That’s where the real bottleneck lives.

The Problem: Software Limits You Can’t Feel… Until They’re Gone

Factory torque caps prevent the gearbox from allowing full engine output even if the engine is capable of producing more.

Some tuners “trick” the TCU into thinking torque is lower than it actually is.

That’s not how a proper performance platform should operate.

You want:

• Accurate torque modeling

• Clean communication between ECU and TCU

• Faster, smarter shifts

• Full driver control in manual mode

Introducing the MADNESS MAXPower TCU Flash

Precision Transmission Calibration for the Alfa Romeo Stelvio

This is a true OBD2 transmission flash, not a workaround.

Flashed directly to your factory TCU through the OBD-II port
No physical removal of the TCU required
No hacking or bypassing factory systems

Just a clean, professional recalibration using genuine OEM software protocols.

What We Improve And Why It Matters

Raised Torque Limiters

We raise or remove factory torque caps (where supported), allowing your engine to deliver full horsepower and torque gains.

What that means for you:

Stronger acceleration
Full benefit of your ECU tune
No artificial restrictions

True Manual Mode Control

Many drivers dislike forced upshifts in manual mode.

We adjust automatic upshift behavior so you control gear changes, not the software.

Result:

More driver engagement
Better corner control
Improved performance on spirited drives and track sessions

Reduced shift time and optimized line pressures deliver crisp, decisive gear engagement.

Result:

Sharper throttle response

More connected feel

Transmission behavior that finally matches the Giulia’s character

Stay in the power band longer without premature upshifts interrupting acceleration.

MADNESS MAXPower TCU Tune Features

• Raised torque limiters

• Decreased shifting time

• Increased line pressures

• Raised rev limiter

• True OBD2 flash tuning & calibration

• Use of genuine OEM software, maps, and protocols

• Simple user interface with Bluetooth / WiFi app control

• Read and flash your TCU directly from your smartphone

• TCU files stored securely on our tuning cloud

Every calibration:

• Optimizes power delivery, drivability, and efficiency

• Delivers consistent, linear, smooth acceleration

• Retains OEM tuning logic (including self-adaptation)

• Retains all OEM mechanical safety mechanisms

• Protects against incomplete flashes

• Ensures all factory hardware functions properly

We do not hack or bypass the factory ECU.

We recalibrate it properly.

Already Running a MAXPower ECU Flash Tune?

You do NOT need to purchase a second device.

Simply purchase this flash option (this listing) and we’ll provide the transmission calibration for your existing system.

Simple.

“Is It Safe for My Transmission?”

Yes.

We retain factory mechanical protections and safety systems.

This is a refined calibration, not a “max everything out” file.

Performance with responsibility.

“Is It Complicated to Install?”

No.

Everything is done through your OBD2 port using our smartphone app.

Read. Flash. Drive.

Why Stelvio Owners Upgrade

Because once torque limits are raised…

Once shifts get faster and more decisive…

Once forced upshifts are removed…

The entire car feels tighter, sharper, more alive.

It finally shifts like it looks.

This Is the Missing Piece

If you’re serious about unlocking the full potential of your Alfa Romeo Stelvio, the transmission calibration is not optional,  it’s essential.

Select your option below:

• Full Tuning System

• TCU Tune Only (for existing MAXPower Flash users)

Supported Vehicles & Application Guide

The MAXPower TCU Flash is engineered specifically for the Alfa Romeo Stelvio 2.0L Turbo platform.

Directly Supported (No SGW Bypass Required)

• 2017 Alfa Romeo Stelvio 2.0L

• 2018 Alfa Romeo Stelvio 2.0L
  (Models built before February 2018)

SGW Bypass Required

The following model years require an SGW (Security Gateway) Bypass in order to perform OBD2 flashing:

• 2018 Alfa Romeo Stelvio 2.0L (Built after February 2018)

• 2019 Alfa Romeo Stelvio 2.0L

• 2020 Alfa Romeo Stelvio 2.0L

• 2021 Alfa Romeo Stelvio 2.0L

• 2022 Alfa Romeo Stelvio 2.0L

• 2023 Alfa Romeo Stelvio 2.0L

What Is an SGW Bypass?

Beginning in mid-2018 production, Alfa Romeo added a Security Gateway Module (SGW) that restricts direct OBD programming access.

An SGW bypass simply allows secure communication between your tuning device and the vehicle’s control modules. It does not remove factory safety features.

If you're unsure which production date applies to your vehicle, just give us a call. We will verify it quickly and make sure you order exactly what you need.

Upgrade your transmission.
Unlock the performance Alfa engineered into the car, but never fully released.

If you have any questions or need assistance, don't hesitate to reach out to us. Our knowledgeable team is here to help. Call us at 512-982-9393 (Texas) or 562-981-6800 (California).

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov