The aftermarket exhaust provider could be valued at more than $100m, said Angle Advisors managing director Cliff Roesler, according to Dow Jones.
Audax invests in companies with an enterprise value of between $50m and $250m and an EBITDA of $5 to $30m.
It is focused on the business and consumer services, energy, healthcare, telecommunications and industrial sectors.
In May last year Audax bought institutional review board services provider Chesapeake Research Review.
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