Authorized Fi Exhaust Dealer

Valvetronic Exhaust  ·  Titanium & T304  ·  Built to Order

Valvetronic cat-backs, catless and Sport 200-cell downpipes, mufflers, and the Fi Pro remote — tuned to each engine’s firing order for BMW M, Mercedes-AMG, Porsche, Ferrari, Lamborghini, McLaren, the R35 GT-R & more. Quiet at 7am, full voice when the valves open.

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✔ Valve control from factory buttons    ✔ Built to order by Fi    ✔ Pro install available

CHOOSE YOUR FI

Pick a system type — or jump straight to your car below.

Full Systems

Valvetronic Cat-Backs 72+ SYSTEMS
Front pipe to tips — the full valve experience, five tip finishes. Valvetronic Mufflers
Exotic-car muffler sections — Ferrari, Lamborghini, AMG G-Class.

Downpipes & Control

Catless & Sport 200-Cell Downpipes 130+ OPTIONS
Faster spool, sharper note — catless for max flow, 200-cell to keep it civil. Fi Pro Remote & Rings
Keyring valve control plus swappable face rings in 16 finishes.

FIND FI FOR YOUR CAR

Fi Exhaust (Frequency Intelligent) builds every system to order in Taiwan — T304 stainless or full titanium in the Fi TITANIUM line, with muffler internals tuned to each engine’s firing order instead of a universal core. As an authorized dealer we carry Fi’s current catalog at Fi’s own pricing, with every tip-finish and Fi Pro remote option Fi builds. Every listing shows the real fitment table — chassis code, engine, OPF vs non-OPF — plus Fi’s own sound clips. Our Thousand Oaks shop backs every system with real fitment answers before you commit.

Not sure whether your car is OPF or non-OPF spec, or which downpipe pairs with which cat-back? Ask before you order — we confirm fitment on every Fi order before it goes to the factory.