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Valvetronic Fi Exhaust for G90 & G99 M5

Valvetronic Fi Exhaust for G90 & G99 M5

Posted on July 14, 2025 By rehan.rafique No Comments on Valvetronic Fi Exhaust for G90 & G99 M5

BIMMERPOST
Go from Muted to M Car Worthy Soundtrack for the G90 / G99 M5 w/ Fi EXHAUST

Sound Test

Car Spec: G99 M5 (OPF)
Exhaust setup configuration: Valvetronic Catback (OPF bypass) + Secondary Catless Downpipe + Primary Catted Sport 200Cell Downpipes

Get in touch with our specialist / price inquiry: click here

Today’s G90 / G99 M5 drivers are often left hearing more from the speakers than from the engine. U.S spec cars are equipped with 2 large resonators on the catback muffling a sound. And European spec car also include restrictive OPF filters. The stock setup filters and fakes the experience, leaving the true sound potential of the car buried—even with M Sound settings enabled.

Our sound engineers got to work and we are now ready to present a solution for a livelier driving experience. A complete performance exhaust solution that replaces the restrictive factory setup with high-flow or catted primary downpipes, catless secondary downpipes, and a valvetronic catback. Two large resonators are replaced with a streamlined exhaust setup feauturing x-pipe. And OPF filters are bypassed for Europe spec cars. And there’s already tuning solutions (ECU coding or a remap) in the market to address error lights triggered by their removal.

Leave muted sound tones and be welcomed back into M car-worthy soundtrack with our setup that delivers aggressive tone with 34dB volume increase over stock with our complete setup. We’re comparing the sound volume increase to our R&D car that was equipped with OPF.

On U.S.-spec vehicles, however, the stock system lacks functional valves entirely. Unlike older M models like the F90, the G90’s OEM exhaust has no mechanical or electronic valve control. And M Sound button does not control the factory exhaust valves because they’re not present on U.S.-spec models. Instead, it affects ASD-generated sound and deceleration burbles.

That’s why with our valvetronic exhaust system, we include a standalone remote—giving you real, physical control over the exhaust valves. This lets you easily switch between a refined daily setup and a raw M-Performance profile, independent of BMW’s settings.

BMW G90 / G99 M5 2024+ – exhaust features:

  • Full valvetronic exhaust system, which includes a valvetronic catback, primary downpipe, secondary downpipe and quad tips.
  • 2 primary downpipe options to regulate exhaust gas flow and sound: Ultra high flow catless and Sport 200 cell downpipes.
  • Tip Color Options: silver, gloss black, titanium blue, gold and with carbon fiber.
  • Fi EXHAUST valve modes are compatible with a BMW OEM sound control button on the center dashboard.
  • Manufactured from a high-grade T304 stainless steel.
  • Expert TIG welding techniques.
  • Weight reduction compared to OEM/Stock exhaust.
  • Street/Race exhaust sound profiles.
  • Rigorously sound tuned exhaust sound frequency.
  • Horsepower increase and low back pressure.
  • Guaranteed bolt-on fitment using precision crafted design.
  • Exhaust valves on European spec cars can be controlled through factory settings.
  • Remote control is supplied to U.S spec cars to enjoy 2 distinct sound profiles at the press of the button.
  • Remote Control and Mobile APP on iOS and Android devices is available (optional).
  • Fitment / Compatible Models: Available for the 2024+ BMW G90 M5 Saloon and BMW G99 M5 Touring U.S & European spec (Non-OPF / OPF) models.











Last edited by FiEXHAUST; 07-10-2025 at 04:28 AM..


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