What is Valvetronic exhaust and why it became the tuning standard
What is Valvetronic and why it's the standard
How electronically controlled valves work, why it's not the same as cheap vacuum valves from AliExpress, and how much HP it actually adds.
First — just listen. BMW M5 G90 with Fi EXHAUST Valvetronic Catback:
The point in one sentence
The exhaust system has electronically controlled valves built in. Closed — gas flows through the resonator (quiet, OEM mode). Open — gas flows straight through, minimizing back-pressure (roar, race mode).
3 ways to switch modes
Remote
Keep it in your pocket, press a button — modes switch. Works on any car without integration.
OBD dongle
Plugs into OBD port. Sport / Race Drive Mode automatically opens valves. Plug-and-play, no reflashing.
OEM integration
On BMW and Porsche — valves respond to the factory Sport Exhaust button. Factory-grade.
How much HP it adds
Different engines
Choose your car
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