June 06, 2022


Boca Raton, Florida, June 06, 2022 – Hidden Harbor Capital Partners (“Hidden Harbor”), an operationally focused private equity firm specializing in control investments in lower middle market companies, is pleased to announce its newly formed entity, Burnout Brands, has completed the acquisition of Monster Transmission LLC and Thor Convertors LLC, (“Monster Transmission”), a leading aftermarket automotive business focused on custom performance transmissions and torque convertors. Monster Transmission is the first acquisition in Hidden Harbor II, a $450 Million investment vehicle raised in 2022.

Based in Brooksville, Florida and founded in 2003, Monster Transmission remanufactures and distributes custom performance transmissions and torque convertors. Monster Transmission sells direct-to-consumer across the United States and is a leader in its core niche of Ford, Dodge, and General Motors pickup trucks.

“In partnership with the Monster Transmission management team, we look forward to scaling the Company’s operations, executing on its organic growth plan, as well as further building out the Burnout Brands platform through additional complementary M&A,” said Andrew Joy, Partner at Hidden Harbor.

 “We are pleased to partner with Hidden Harbor and know that their operational resources and support will help us realize our growth opportunities. The existing owners will retain ownership in Monster Transmission and remain committed to delivering exceptional service to our customers, creating rewarding opportunities for our employees, and supporting our suppliers and other key business partners,” said Achilles Thomas, CEO of Monster Transmission.

“We are excited about the opportunities in the performance auto aftermarket and believe Monster Transmission is well-positioned to succeed,” said Benjamin Koch, Vice President at Hidden Harbor.

McDermott, Will and Emery served as counsel for Hidden Harbor. Terms of the transaction were not disclosed.


About Monster Transmission

Monster Transmission is the leader in aftermarket custom performance transmissions and convertors to the 4x4 truck market. Based in Brooksville, Florida, Monster Transmission is led by CEO Achilles Thomas. For more information, visit


About Hidden Harbor Capital Partners

Hidden Harbor Capital Partners is a private equity firm which helps create business success stories by building teams focused on execution.  We believe that great companies are built on a strong group of people as their foundation, and that businesses succeed when they are intensely focused on executing a small set of well-defined objectives.  Hidden Harbor currently manages over $700 million of equity capital and is investing out of its second fund, a $450 million vehicle.  To learn more, visit and our page on LinkedIn.




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