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XperTune Performance Software
XperTune ECU software for the McLaren 650S's 3.8-litre twin-turbo V8, taking a stock 650hp/500 lb-ft to a dyno-verified 700hp/546 lb-ft by reprogramming sensor inputs, air/fuel ratios, and boost pressure. It's not a physical part — you send in your ECU, Fabspeed bench flashes it with the upgraded map, and it's returned ready to refit, with your stock settings kept on file so the car can be reverted to stock at any time. Maps are also available for cars running Fabspeed's sport cats and X-Pipe exhaust.
Frequently asked
Does the XperTune Performance Software fit my 650S?
This listing is specific to the McLaren 650S. 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.
How much power does this tune add?
A stock 650hp/500 lb-ft climbs to a dyno-verified 700hp/546 lb-ft.
Is this a physical product?
No, it's a mail-in ECU tune — you send in your ECU for bench flashing and it ships back ready to refit.
Does it work with other engine modifications?
Yes, maps are available for cars running Fabspeed's sport cats, cat bypass pipes, exhausts, or upgraded turbos, in addition to the stock-hardware map.
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.
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