B48
Custom two-step for compatible B48 vehicles and ECU software.
Check my B48CUSTOM SOFTWARE. PURPOSEFUL PERFORMANCE.
Two-Step Tuning
for B48, B58
& S58.
Your platform. Your setup. A custom two-step tune.
Software-based tuning, subject to ECU and software compatibility.
Request a Tune
$199 USDper tune
Compatibility first. Payment after confirmation.
X58 / PERFORMANCE SERIES●
B48B58S58SOFTWARE / 01
SEE & HEAR TWO-STEP
Turn the sound on.
G30 540i. Original audio. Press play to watch and listen.
G30 540i▶
The studio background is digitally replaced and registration plates are concealed. Vehicle compatibility and behavior depend on the setup. Read the two-step cautions ↗
01 / THE PLATFORMS
Three platforms.
One focused service.
Custom two-step tuning for the BMW B48, B58 and S58 engine families. Every request starts with a compatibility check.
B58
Custom two-step for compatible B58 vehicles and ECU software.
Check my B58S58
Custom two-step for compatible S58 vehicles and ECU software.
Check my S58↳ Support depends on your vehicle, ECU and software version. Not every generation or ROM is supported.
02 / HOW IT WORKS
From your setup
to your tune.
A straightforward process, with compatibility confirmed before any payment.
- 01
Tell us about your car.
Submit your email, VIN, current tuning platform and desired activation RPM.
- 02
We check compatibility.
We review your ECU software, preferred activation method and RPM, then confirm file requirements.
- 03
Your tune, prepared.
After confirmation and payment, we prepare and deliver your tune through the agreed method.
03 / STRAIGHTFORWARD PRICING
A custom tune.
A clear price.
One focused service, tailored to a compatible setup.
CUSTOM TWO-STEP TUNEPER TUNE
$199 USD
- Vehicle and ECU compatibility review
- Activation method and RPM reviewed for your setup
- Custom two-step tune preparation and delivery
No payment collected before compatibility is confirmed.
04 / TWO-STEP CAUTIONS
Know the risks.
Respect the limits.
Two-step places additional demands on your vehicle. Compatibility approval does not eliminate the risk of damage.
Controlled motorsport only.
Use only in a controlled motorsport environment with a clear launch area. Do not activate on public roads, near spectators or in enclosed spaces. Keep people clear of the vehicle and exhaust.
Components can be damaged.
Two-step and repeated launches can increase engine, turbocharger and drivetrain stress. Clutches, transmissions, differentials and driveshafts may be damaged or fail. Vehicle condition and setup matter.
Heat is a serious risk.
Depending on the strategy, unburned fuel can ignite in the exhaust. Excess heat can damage the turbocharger, catalytic converters and exhaust components. Keep exhaust outlets away from people, dry grass, fuel and other flammable materials.
Keep activation brief.
Follow the activation and cooldown instructions supplied for your tune. Avoid prolonged limiter use and repeated back-to-back activations. There is no universal safe RPM or hold time for every setup.
Stop when something is wrong.
Do not use two-step with a cold engine, known faults, leaks or overheating. Stop immediately for warning lights, abnormal noises, unexpected misfires or unusual temperatures, and have the cause checked before using it again.
Use the reviewed settings.
Have activation conditions, RPM and exhaust compatibility reviewed for your vehicle. Confirm how two-step interacts with any anti-lag or launch-control features. Follow the delivered instructions and the venue’s rules.
General technical references
Manufacturer guidance describes launch-control heat and driveline risks, and potential catalytic-converter damage from limiter use. These are general references, not confirmation of your vehicle’s compatibility or any affiliation with X58 Performance.
Haltech: launch-control precautions ↗MSD: two-step cautions (PDF) ↗05 / LET’S TALK ABOUT YOUR SETUP
Your next step
starts here.
Share your email, VIN, current tuning platform and desired activation RPM. We’ll review your request and confirm any further details needed.
Have your VIN ready.
Enter the full 17-character VIN.
Activation RPM is subject to technical review. No tune file upload is needed at this stage.
06 / A FEW THINGS TO KNOW
Before you
get started.
Is my vehicle compatible?
Compatibility depends on the vehicle, ECU program and software version. B48, B58 or S58 engine identification alone does not guarantee support. We confirm compatibility before requesting payment.
Can I use this with an existing custom tune?
Tell us about your current tune and tuning platform. We need to review the existing setup and file requirements before confirming whether two-step can be added. Do not send files until we confirm what is needed.
What information do I need to start?
Your email, full 17-character VIN, current tuning platform (MHD, bootmod3 or Others), and desired activation RPM. We may request ECU software details or existing tune information during compatibility review. No BIN upload is required in this form.
How will my tune be delivered?
We confirm the required files and delivery method after reviewing compatibility. After confirmation and payment, we prepare and deliver your tune. Delivery timing is discussed during the review.
What should I know about two-step use?
Two-step is intended for controlled motorsport use and can cause engine, turbocharger, exhaust or drivetrain damage. Prolonged activation adds heat and stress; catalytic converters may also be damaged. Follow the instructions supplied for your tune and read the full two-step cautions before use.
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Built for controlled motorsport use. Two-step may increase engine, turbocharger and drivetrain stress. Read the cautions ↗