Valvetronic Designs BMW E9X 335i Valved Exhaust System

Valvetronic Designs


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Valvetronic Designs Exhaust:
Read the info below. Read information for the M3 or the 335i
M3 is the full axle back muffler. The 335i is ONE sided and uses factory passenger muffler. Please note: the exhaust alone does not give your car abilities to shoot flames. It will need to be paired with a tune.

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Very thankful for Valvetronic designs allowing me to be a proud reseller for this product. I can say, I am a fan!

For the M3:

The long awaited Valvetronic Designs E9X M3 system is finally here. These systems are fully mandrel bent for maximum flow and are constructed out of T304 stainless steel, the highest quality material on the market. Our dream is to offer the BMW community an incredible valved exhaust without charging the famous "M tax" and that dream has come true. For far too long these systems have been out of reach for most people, but no longer. This system comes with everything you need to have your E9Xx M3 sound like a beast on your favorite back road, or cruise to the shops without alerting the authorities. Your time to take control of your E9X M3 sound is now.

  • Fully Mandrel bend for maximum flow
  • The LEAST expensive fully valvetronic M3 exhaust
  • Precision tig welds for high strength
  • Built from T304 Stainless Steel
  • Beautiful tips to match your M3 look
  • Electronic Valves (rapid open and close function)

For the 335i:
Fulfillment time is 3 weeks. ONE exhaust tip is included.

Welcome to the latest iteration of our Valvetronic exhaust for the BMW 335i E9X. You no longer have to compromise between the exhaust sound you want and the drone you don’t. The factory BMW exhaust is very tame, and what this system does is allow you to keep the tame nature of the system when the exhaust valve is closed and have that glorious straight 6 sounds when the valve is open. This system is constructed of T304 stainless steel and is fully mandrel bent for maximum flow. This system replaces your factory drivers side muffler and integrates a 60 mm exhaust valve that is controlled by a key fob style controller that can be placed on your key chain or anywhere in the car you desire. The system mounts directly to the factory BMW exhaust hangers and is roughly 11 pounds lighter that the stock unit. A very small wiring harness is provided that plugs into BMW’s factory vacuum solenoid in the truck giving the driver the control of the exhaust. Install is incredibly easy and takes roughly 1 hour.


Each system is handmade right here in Central Pennsylvania by true craftsmen and is the product of over a year and a half of development. The system is designed to fit both E90 and E92/93 models.

* ONLY fits with factory exhaust systems. This system does not fit any other system aftermarket system. 

*Please specify whether engine is 4 or 6 cylinder for F Chassis (F2X/F3X) systems in notes section.

Current Fulfillment time is approx. 1 week 

Exhaust tip note:* tips are sold individually as only one side of the exhaust is modified. You are welcome to use your own exhaust tips. In addition the tip supplied is from another BMW model and is not a 100% match to your factory tip. 

Box Contents:

Valvetronic exhaust, clamps, exhaust tip, Valvetronic controller