Proudly serving Porsche owners throughout the Inland Empire including Montclair, Ontario, Claremont, Upland, Rancho Cucamonga, Pomona, San Dimas, and Riverside, CA.
Conveniently located at the 10 fwy and Central Ave exit.

Description
Now available at 911 Design — the M-Engineering ECU Tuning with Live Map Switching for Porsche 911 992.1 GT3 RS. Professional installation available at our Montclair, CA facility.
M-Engineering is proud to announce tuning for the 992 GT3 RS. Adjustments are made to improve the throttle response, remove top speed limiters, adjust air/fuel ratios, and modify ignition timing and much more to improve the overall driving performance of the 4.0L flat-six engine. M-Engineering still utilizes all OEM ECU engine safety strategies.
Live Map Switching
On-The-Fly Live Map Switching comes standard on all calibrations (Stage 1 and Stage 2). The purpose of this feature is to quickly change between different power levels relating to the octane you are filling up with. This is all controlled via the cruise control stalk. Information on how to use Live Map Switching can be found here.
Map Slots
Slot 1 - ACN91 (Arizona, California, Nevada 91)
Slot 2 - 91 Octane or 95RON
Slot 3 - 93 Octane or 98RON
Slot 4 - 100 Octane or 103RON
Stage 1 93: +30whp +25wtq approximately
Stage 2 93: +44whp +29wtq approximately
(pump gas, dependent on quality of fuel and mods)
*M-FLASH requires a bench procedure which requires the ECU to be sent to M-Engineering HQ.
TYPICAL TURNAROUND TIME IS USUALLY 24 HOURS AFTER RECEIVING.
Many of our products are built to order and/or shipped directly from the manufacturer to ensure authenticity and quality. After your order is placed, our team will promptly confirm availability and provide an estimated delivery timeframe. If you have any questions regarding product selection or your order status, please do not hesitate to contact us.