| Fuel | Power Type | Configuration | Horsepower (HP) | Torque (lb-ft) |
|---|
| 93 Octane |
Calculated Flywheel Power |
OEM Stock |
778 |
834 |
| Tuned |
862 |
917 |
| Measured Wheel Power |
OEM Stock |
638 |
684 |
| Tuned |
707 |
752 |
| 100 Octane |
Calculated Flywheel Power |
Tuned |
913 |
969 |
| Measured Wheel Power |
Tuned |
749 |
795 |
Awaken the G90 M5’s Full Potential
CarBahn Stage 1 Performance Controller – BMW G90 & G99 M5
The G9X M5 marks a bold new chapter in BMW M performance—fusing electrified torque with brute V8 power in a way no M car has before. But even with all that innovation, there’s more lurking beneath the surface. The CarBahn Stage 1 Performance Controller is your key to unlocking it.
Meticulously engineered by tuning legend Steve Dinan, this plug-and-play module delivers an astonishing increase in performance—without altering your factory ECU or compromising long-term reliability. On 100 octane fuel, we’ve measured a blistering 913 flywheel horsepower and 969 lb-ft of torque, transforming the already formidable M5 into a supercar-slaying monster.
Whether you're chasing tenths at the track or simply demanding more from every on-ramp, the Stage 1 Controller brings out the car BMW engineered but left in reserve.
Highlights:
- Up to 913 Flywheel HP / 969 lb-ft (on 100 octane)
- Plug-and-Play Simplicity: Installs in under an hour, fully reversible, no ECU flash required
- Daily Driver Friendly: Smooth at low speeds, savage under throttle
- Future-Proof Engineering: Compatible with upcoming CarBahn upgrades
With demand for the G90 M5 surging and its place in M history already sealed, this controller ensures yours won’t just be another fast car—it’ll be the car that everyone remembers.
About our Controllers
The CarBahn Performance Controller (CPC) is an easy-to-install Controller that significantly boosts the turbocharged cars' horsepower and torque. This plug-and-play unit offers selectable maps, which can be accessed through a smartphone application via Bluetooth. To access this app, you must download them from either the Apple App Store or the Google Play Store.
The maps are specifically designed to optimize performance based on different octane fuel levels. You have the flexibility to choose between 91, 93, and 100 octane options.
Additionally, CarBahn offers an optional powertrain warranty for all their products, including the CPC.
Emissions Legality:
Let us address the topic of removing the catalyst, commonly achieved through the utilization of downpipes. Our rigorous testing regimen involved conducting consecutive dyno runs with and without the catalyst, and the observed power gain was significantly smaller than commonly touted, typically around 2%. Nevertheless, it is important to acknowledge our shared responsibility towards environmental preservation, as clean air is vital to our well-being. Furthermore, obtaining the necessary emissions certifications without a catalyst is a daunting task and, from a legal standpoint, it is considered an infringement.
About Steve Dinan:
With an illustrious career spanning over four decades, Steve Dinan stands as an authority in streetcar turbo tuning. Under his leadership, our team has triumphed in three prototype racing championships and secured two overall victories at the esteemed 24 Hours of Daytona in collaboration with Chip Ganassi Racing. Steve Dinan's unparalleled expertise solidifies our claim as the leading force in tuning high-performance engines.
The History of How We Got Started
CARBAHN Autoworks is led by Steve Dinan, a luxury car enthusiast just like you. His vast experience with high-powered BMW performance is more than just a hobby. He even took his BMW expertise to the race track, where he gained firsthand knowledge about maximizing your BMW’s potential. From behind the wheel of a BMW, he’s gained a more in-depth knowledge and understanding of how to maximize their performance and potential. CARBAHN Autoworks reputation for unmatched technical knowledge and attention to detail builds from a lifetime in the auto service industry. In fact, it’s our exceptional service, state-of-the-art diagnostic technology, and competitive pricing that make CARBAHN Autoworks the premier alternative to dealer service for complete BMW and Mercedes repair. As an automotive and race engineer Steve’s passion for these superior vehicles translates into a deep understanding of, and intense commitment to how they perform. In 1979, he started the largest company in North America dedicated to BMW high performance (Dinan Engineering). He was acting CEO and Technical Director for 36 years. Dinan secured a contract with BMWNA in 1997 and is the only company that has approval to sell their product out of BMW dealers. Sixteen years as a racing driver retiring from driving in 1996. A racing chassis engineer for 10 years. A racing engine supplier for 10 years. Steve Dinan has won 11 championships including two 24 hours of Daytona!
