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XperTune Performance Software
A bench-flashed ECU tune for the BMW M5 F90's 4.4-litre twin-turbo V8, adding a claimed 84 horsepower and 120 lb-ft of torque by reprogramming fuel, ignition, and boost mapping. It's not a shipped part: you send in your ECU, Fabspeed's tuner writes a custom map from your vehicle information within one to two business days, and it ships back using the same method you sent it. Your stock settings are saved, so the ECU can be reverted at any time. Compatible with BMW F90 M5 vehicles built from 2017 through June 2020; cars after that date use a Bosch ECU family that is locked and cannot be tuned this way.
Frequently asked
Does the XperTune Performance Software fit my M5?
This listing is specific to the BMW M5 (F90). Exact fitment for your year, trim and options is confirmed on your free consult before anything is ordered.
What does the price include?
The delivered price includes the part from Fabspeed USA, freight to Australia, import costs and GST. Enter your postcode to refine delivery; the final figure is confirmed on consult.
How long until it arrives?
Every Fabspeed part is made in-house at Fabspeed USA with about a one-week production lead time, then allow another 3-4 days for delivery to Australia via UPS. That freight is already included in the price.
Do I need to remove my whole car, or just the ECU?
Just the ECU. You send it in, it's bench-flashed with the custom tune, and shipped back the same way it arrived.
How long does the turnaround take?
One to two business days once Fabspeed has received your vehicle information and ECU.
Can I go back to stock?
Yes, your factory settings are saved and Fabspeed can revert the ECU to stock at any time.
Does this work on any M5 F90?
It's compatible with F90 M5 vehicles from 2017 through June 2020. Later cars use a Bosch ECU family that's locked and can't be tuned this way.
Who installs it?
Rennen Motorsport in Adelaide, or an authorised dealer near you. Fitting it yourself may also be an option depending on the part, so raise it on your consult; professional installation is quoted separately.
Is it covered by warranty?
Fabspeed products carry the manufacturer's warranty, supported locally through Rennen Plus as the Australian principal. See our returns policy.
Can I just buy this outright, or do I need to talk to someone first?
Every enquiry, whether it's one part or a full build, starts with a free consult. We confirm the exact spec for your car before anything is quoted or ordered.
