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Welcome to the Valvetronic Designs cat-back exhaust system for the F8x platform, or in other words, the solution to the F8x sound problem. For years enthusiasts have been wanting to find a solution to the buzzy and raspy sound these cars produce from the factory. Since these cars were released back in the late portions of 2018 we all knew there was an amazing sound lying under all the rasp. Our mission has been to find this hidden sound and allow all F8x owners to enjoy it. This full catback starts as a dual 2.5-inch setup featuring 2 resonators to eliminate the unwanted rasp. From there the system travels back and merges into a single 3.5 inch pipe. After the merge, the exhaust either exits out of the Drivers side exhaust tips when the valves are open or passes through our quad chambered muffler and out of the passenger side exhaust tips when the valves are closed for a lower volume experience. This system mounts up to factory mounting points and is a direct bolt-on. No cutting or welding is necessary. It's time to make your M2 Competition sound like it always should have.


Sound Dynamics:

Compared to all other exhausts on the market, the Valvetronic Designs and Equal Length gives a sound experience truly unknown to the S55. Gone is the unpleasant rasp of the competition's exhaust, in its place a smooth raw engaging sound all the way through the rev range. There are others on the market that produce an Equal Length exhaust set up but none of them come close to the true naturally aspirated sound you get from the Valvetronic Designs Setup. The system merges into a single 3.5 inch section to invoke that single turbo supra sound as the revs and the boost builds. It is truly a sound characteristic that must be hard in person. 



Features of this Valved Exhaust 

  • Constructed from T304 Stainless Steel 
  • Electronic exhaust valves for factory-like operation 
  • 21.7 lbs Lighter than the factory exhaust 
  • Fully Mandrel bend for maximum flow
  • Precision tig welds for high strength
  • 100% REVERSABLE, always able to go back to stock at any time




We have a 20-day return policy, which means you have 20 days after receiving your item(s) to request a return. Please note we charge a 25% restocking fee on all returns. To be eligible for a return, your item must be in the same original/new condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question at Please inspect your order upon arrival, and contact us immediately if the item is defective, damaged or if you received the wrong item, so that we can evaluate the issue and make it right.

Exceptions/non-returnable items:

Certain items cannot be returned, like sale items, perishable goods, custom products (such as special orders or personalized items), hazardous materials, flammable liquids, and/or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on sale items or gift cards.


The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.


We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember, it can take some time for your bank or credit card company to process and post the refund.