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XperTune Performance Software
A bench-flashed ECU tune for the McLaren 675LT, raising a claimed 582 whp/490 lb-ft to 629 whp/516 lb-ft with peak gains of roughly 66 whp and 43 lb-ft at 8000 rpm. It's not a shipped part: you send in your ECU, Fabspeed bench-flashes it with the upgraded map from your vehicle information, and returns it for simple re-installation with no other modifications needed. Your stock settings are saved first so the ECU can be reverted to factory at any time. Maps are available for completely stock cars or ones already running sport cats, cat bypass pipes, or upgraded turbos.
Frequently asked
Does the XperTune Performance Software fit my 675LT?
This listing is specific to the McLaren 675LT. 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.
What power gain can I expect?
Fabspeed's dyno figures show 582 to 629 whp, a gain of roughly 66 whp and 43 lb-ft at 8000 rpm.
Can I go back to the factory tune?
Yes, your stock ECU settings are saved so the car can be reverted to factory at any time.
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.
