TunedMercedes M133 Tune

Description

Wake Up the M133 (A45 / CLA45 / GLA45)

Expected Output

The M139 easily tunes to 420 HP and 400 TQ (500 nm) in a stage one tune calibration and 462 HP with 442 TQ on a stage 2 car with mods such as air intakes, another 40 HP with 400 cell metallic cats, and an additional 20-50 HP with ethanol blend fuel mix.

This calibration tightens torque management, optimizes boost/load, refines throttle mapping, and coordinates better with shift logic so more of the power reaches the pavement—without sacrificing daily reliability.

What You’ll Notice

• Earlier, stronger torque with cleaner mid-range delivery
• Faster tip-in and more predictable throttle (less “soft” feel)
• Cleaner upshifts at higher load when shift logic is coordinated
• Adaptation settles over a few drives; most gains are immediate

Choose Your Fuel & Stage

Package	Hardware	Fuel	Notes
Stage 1 — 91/93	Stock hardware	91 or 93 AKI	Daily-friendly baseline; big mid-range delta.
Stage 1 — E30 Blend	Stock hardware	E30 (approx.)	Extra knock headroom; strongest spool/torque on stock parts.
Stage 2 — 93	High-flow downpipe	93 AKI	Lower backpressure; better top-end repeatability.
Stage 2 — E30	Downpipe	E30 (approx.)	Peak street setup for stock turbo; excellent mid-to-top.

Results vary with health, altitude, fuel quality, temps, and drivetrain. If you track/dyno, we’ll review logs and tailor as needed.

What’s Included

• Custom ECU calibration for your fuel/hardware
• Remote OBD flash (Windows laptop + stable internet)
• Data review & one revision window
• Return-to-stock file on request

How It Works

1. Prep: Confirm software variant, fuel, and hardware; add your VIN in Order Notes.
2. Read: Connect the interface; we remote in and read your file.
3. Tune: We build the calibration for your goals and conditions.
4. Flash & Drive: We write the file and guide first-drive checks; adaptation continues as you put miles on it.

Fitment

M133 2.0L turbo AMG applications (A45 W176, CLA45 W117, GLA45 X156). Unsure? Add your VIN in Order Notes and we’ll confirm before flashing.

Recommended Supporting Mods

• High-quality 91/93 or correctly mixed E-blend
• Fresh one-step-colder plugs if higher mileage
• Intercooler / heat-management upgrades for hot climates
• Intake/inlet and downpipe for Stage 2 paths

FAQ

91 vs 93 vs E30?

We offer safe 91 and stronger 93 files. E30 provides added knock margin for the best response on stock hardware.

Dealer visits / warranty?

Tuning may affect warranty. Many customers flash back to stock before service; we provide return-to-stock support.

Readiness / emissions?

We do not provide emissions defeat. On compliant hardware, street files retain normal readiness behavior.

Policies & Notes

No emissions defeat is provided or implied. Tuning can affect drivetrain wear and dealer warranty. Our liability is limited to the transaction amount. Start from a healthy baseline vehicle.

The TCU Can Request TQ Reduction

The TCU can request decrease in torque and will hold the car back unless also tuned. TCU tune greatly improves time off of the line.

Add to Cart — M133 ECU Tune