Fabspeed XperTune Performance Software for McLaren 650S

Fabspeed XperTune Performance Software for the McLaren 650S recalibrates key strategies — sensor inputs, air/fuel targets, and boost control — to increase horsepower, torque, and overall drivability without compromising reliability. Tailored maps are available for completely stock cars or builds with Sport Cats, Cat Bypass Pipes, full exhausts, upgraded turbos, and more, delivering a stronger midrange and cleaner pull to redline. On the dyno, development testing showed gains of 33whp and 44ft-lbs at 4000 rpm, translating to quicker response and more urgent acceleration in any gear. The result is a 650S that feels decisively faster and more refined in everyday driving and at the limit.

Features

• Gain of 33whp and 44ft/lbs
• Improved engine performance
• Drivability remains uncompromised
• 24-48 hour turnaround

Applications

• McLaren 650S: 2014-2017
  (M838T – 3.8L V8 twin-turbo)

Notes

• The purchaser is responsible for covering the shipping expenses when sending an ECU to Fabspeed. Once received, Fabspeed will tune the ECU within 24-48 hours and return it using the same shipping method chosen by the purchaser during the initial shipment. For instance, if you sent the ECU via ground shipping, it will be returned using ground shipping, and if overnight shipping was used, the ECU will be shipped back via overnight as well.
• This is not a physical/shipped product.  This upgrade requires you to send us your ECU for re-programming. You will be emailed a download link with detailed instructions after adding this to your cart and checking out
• While a vehicle equipped with bolt-on upgrades will experience maximum gains as a result of the increased efficiency of the engine, great power gains can be made on a completely stock vehicle
• You must fill out and include a copy of the ECU Information form along with your ECU upon sending it in. Please contact us if you need to send the form in any other manner
• Fabspeed Motorsport saves your stock/factory ECU settings so that we can convert or flash your ECU back to stock settings at any time for a small fee
• Special requests and tune file upgrades may be subject to additional fees

About Fabspeed

Fabspeed Motorsport is situated in Fort Washington, Pennsylvania, within the United States of America. Their extensive 26,000 sqft. facility serves as a hub for various car clubs, including Porsche Club of America, Ferrari, McLaren, Lamborghini, and more. The company is renowned for its comprehensive approach to product development. They handle the entire process, from design and engineering to dyno testing, street trials, and racing assessments, ensuring the quality and performance of every item. Fabspeed also collaborates closely with race engine builders and tuners hailing from Italy, Germany, and the United States, resulting in the creation of the Ultimate Performance parts. To cater to their passionate global audience, Fabspeed meticulously crafts systems using aerospace-grade austenitic stainless steel, titanium, and carbon fiber materials, setting a standard for excellence in the industry.