E63 ECU Tuning

E63 ECU Tuning

$585.00
Sale price  $585.00 Regular price  $1,025.00
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E63 ECU Tuning

W211 / W212 · M156

E63 ECU Tuning

Unlock the true potential of your Mercedes-Benz E63 AMG with custom-calibrated ECU tuning engineered specifically for the naturally aspirated M156 6.2L V8. From the factory, the M156 engine is electronically restricted with conservative ignition timing, throttle limits, and air/fuel maps....

$585.00
Sale price  $585.00 Regular price  $1,025.00

Guaranteed fitment

  • W211 · M156
  • W212 · M156

Will it fit your car?Not sure? Email us your VIN

  • Made in the USAPhoenix, Arizona
  • Pay over time4 payments with Shop Pay
  • 5-year warrantyFlowsport+ limited
Not sure about your car? Email us your VIN

On the dyno

What it puts down.

The gains listed for this part, measured at the wheels. Your numbers will move with the car, fuel and tune.

  • Listed gain
  • Listed with a “+”: this much or more
Listed gains · at the wheels
Horsepower gain 38 or more wheel horsepower gain
Torque gain 40 or more wheel torque gain
From this part’s specs: 38+ whp · 40+ wtqShows the listed range, not a dyno sheet.
E63 ECU Tuning
E63 ECU Tuning
$585.00

Fitment

Built for these cars

Swapped, or not listed? Email us your VIN
  • W211
    M156
    W211
  • W212
    M156
    W212

Your car on the list? You're good to go.

The details

Specs & details

Unlock the true potential of your Mercedes-Benz E63 AMG with custom-calibrated ECU tuning engineered specifically for the naturally aspirated M156 6.2L V8. From the factory, the M156 engine is electronically restricted with conservative ignition timing, throttle limits, and air/fuel maps. Our performance ECU software recalibrates these parameters to extract massive power, razor-sharp responsiveness, and linear acceleration throughout the entire rev range.

Proven Power Gains

Whether running a stock vehicle or maximizing your build with hardware upgrades, our calibrations are tailored to deliver immediate, track-tested performance:

  • ECU Tune Alone (Stage 1): Delivers direct gains of 38+ HP and 40+ lb-ft of torque over factory output with zero hardware modifications.

  • ECU Tune + MBH Long Tube Headers (Stage 2): Unlocks massive gains of 80+ HP and 75+ lb-ft of torque, fully optimizing engine output to leverage the free-flowing, high-volume exhaust scavenging of MBH Tri-Y headers.

Key Features & Specifications

  • Dyno-Calibrated Software: Fully optimized air/fuel ratios, ignition timing, variable valve timing, and torque limiters for maximum reliable power.

  • Enhanced Throttle Response: Eliminates factory throttle delay for immediate power delivery and explosive acceleration off the line.

  • Seamless Hardware Integration: Custom software mapping specifically tailored to work in harmony with MBH Motorsports Long Tube Headers.

  • Top Speed Governor Removal: Eliminates the factory top-speed limiter for unrestricted performance on the track.

  • Factory-Level Drivability: Retains smooth cruising manners, refined idle quality, and complete refinement while transforming full-throttle performance.

Complete Your M156 Performance Package

Don't let conservative factory software hold your engine back. Combine our ECU tune with MBH Motorsports Long Tube Headers to experience unmatched power gains, aggressive throttle response, and the definitive performance your E63 AMG deserves.

Disclaimer: For off-road racing and competition use only. This product is not intended to be installed on a registered vehicle for use on public roads or highways, and may never be installed on a registered or licensed vehicle for use on any public roads and highways.

$585.00
Questions about this part?Email us your question or VIN.
Email us

Straight from the owners

Built, bolted, proven

Real cars. Real dyno sheets. Here's what owners say after the headers go on.

5.0 / 5

3 verified builds

Verified

Spools like a different car

Backpressure gone. Boost comes in a full 400rpm sooner and it pulls all the way to redline now. Fitment was dead-on — no massaging, no fighting the O2 bungs.

Marcus D.

Scottsdale, AZ · Mar 2026

W211 · E55
Verified

Welds are art

Dyno sheet doesn't lie. Cleaner welds than anything I've had under a car and the coating still looks new after a season of desert heat.

Tony R.

Dallas, TX · Feb 2026

W205 · C63 S
Verified

They actually answer the phone

Called about fitment on a swapped G-wagon and got a real person who knew the platform. Parts shipped next day.

Dave K.

Miami, FL · Jan 2026

W463 · G63

Ready for yours?

Before you order

Straight answers

The questions we get asked most.

Still not sure?

Email us your question or VIN and we'll confirm fitment before you order.

sales@mbhmotorsports.com

Will this fit my car?

It's built for W211 / W212 · M156. Pick your car in the fitment check at the top of this page to confirm. Not listed, or engine swapped? Email us your VIN and we'll confirm fitment before you order.

Where is it made?

Right here in the USA, in our Phoenix, Arizona shop.

Can I ask a question before I order?

Yes. Email us with your car and your question and we'll get back to you. If you're unsure about fitment, include your VIN.

Built for your W211.

E63 ECU Tuning · $585.00