FLI Underground

FLI Underground or FU for short is an expansion of the FLI range, incorporating stylish design and packed with performance, FU is designed to give you more than you bargained for. FU is a volume selling line, with the biggest dealer profit margin of any budget car audio brand.

FLI Underground was specifically designed by our in-house research and development team at the request of international chain store partners, who we continue to work with to develop exclusive FLI Underground products for specific applications and provide technical support and repair services for international partners.

The FLI Underground range includes everything needed to upgrade factory fit audio with Coaxial & Component Speakers, Subwoofers, Amplifiers, Active and Passive Bass Enclosures. FLI Underground is designed for easy fitment, amazing reliability and spectacular audio performance from an affordable product – FLI Underground is bringing car audio to the masses!