WSRD Big Injector MG1 ECU Unlock & DCT Transmission Tuning | 2025-2026 Maverick R - 4 Seat (274-355HP)

Please ship your ECU to the following address;

Whalen's Speed R&D
161 Commercial Avenue
Paw Paw, Michigan 49079
(Please print off your order confirmation email and include with your ECU. This printed order confirmation will be used to seamlessly push your ECU through our unlock process, and avoid any confusion on who the ECU is for or what fuel type flash is being requested.)

ECU Flash Type(s);

• When selecting "ECU Exchange (WSRD Dealer Install)" this process includes a new to the machine ECU and will require additional WSRD Installer Services. Please contact your local WSRD Dealer or Whalen's Speed directly before purchase.
• When selecting "Client Supplied ECU", once your supplied ECU has been received, WSRD will proceed with our MG1 Unlock Services and this will be associated with a 5 business day lead-time. The service will be handled between the end user and WSRD directly as a returned plug and play solution. 

Acceptable Fuel Types;

• 91 Octane | Premium 91 Octane - 10% Ethanol (90/91 Octane Rec fuels can be used)
• 93 Octane | Premium 93 Octane - 10% Ethanol (91/Race Gas blends are acceptable)
• 100 Octane | VP UTV96 or Sunoco 100
• 110 Octane | VP MS109 or Sunoco 110
• E85 | One Ethanol S, Ignite Orange, VP C85 or Gas Station E85 (E85 must test at a minimum of 70% ethanol content - E70. Please use the supplied tester before use.)