Audi S5 B8 4,2l Valve -Tronic Exhaust System

STURMBOCK Performance Exhaust System for Audi S5 B8 4,2I
 

Audi Audi S5 B8 4,2I Cat-back valve-exhaust system - made of stainless steel includes:

Exhaust system of stainless steel 4 x 80 mm beveled and rolled end pipes with exhaust flap control


We are offering a LED Illuminated button for manual switching on/off of the exhaust valves.

The valve-tronic set up allows you the opening and closing of exhaust valves manually, via an exclusive switch,  making the exhaust sporty and sonorous when you want it or gentle classic when you need it.

The exhaust is hand-built in Germany specifically for your car.

The Sturmbock valve-tronic exhaust system is developed with no drone in cabin and is performance optimised on dynometer for maximum horsepower gain.


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FEATURES

The STURMBOCK Valve-tronic exhaust set up allows you to open and close the exhaust valves manually, via an exclusive switch made out of stainless steel with red or blue LED illumination. The Sturm Bockexhaust sounds deeply sonorous when in ON-Position, or has a nice sporty note when in OFF-Position. 

With this function you can select if your exhaust is loud when you WANT it or classic quiet when you NEED it (e.g. when you leaving early in the morning and car should start quietly).

This feature makes it a very unique and personalised exhaust system with a sophisticated and elegant valve opening solution. It gives you the great option to select the exhaust sound level depending on what noise level you like or prefer.

When cars are equipped with original valve control system, the Sturm Bocksystem can utilise the factory opening option or you can add the manual button function.

The operation is done via a button with red or blue LED illumination.
The button can be custom-installed in the centre console area, an empty console switch or wherever you feel is the best accessible place for it.

If button is in ON position, valves are open, creating the deep sound all the time.
If button is in OFF position, valves only open at a per-programmed RPM, for example at 4500 rpm. So up to 4500 rpm the exhaust operates in quiet mode and then above it will open up automatically and be loud again. If you accelerate fast, the valves also open accordingly.

You can choose at what RPM the valves should open, if you wish, otherwise our technicians will set the exhaust opening rpm at the recommended level.

It is a very elegant solution and the sound is amazing.