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Vivid Racing Gear Select the year of your BMW M3:
Hey there, F8x enthusiasts! If you've been on the hunt for a way to ditch that factory buzz and get a real exhaust note out of your BMW M3 or M4, let me introduce you to the Valvetronic Designs cat-back exhaust system. This isn’t just another exhaust; it’s a chance to unleash the true sound that’s been hiding under all that factory rasp since 2014.
This full cat-back system features a 2.75-inch equal length midsection with an H-pipe design, which means it’s engineered to smooth out those annoying tones you’ve come to know too well. Once the exhaust gases pass through the H-pipe, they merge into a beefy 3.5-inch axle back. The result? A sound that’s crisp and enjoyable across the entire rev range. Open the valves, and you’ll hear the exhaust roar through the passenger side tips. Close them, and it’s a quieter ride out the driver’s side, perfect for those early morning drives when you don’t want to wake the neighbors.
Installation? A breeze. This system bolts right up to your factory mounting points—no cutting or welding required. So you can swap it out and return to stock whenever you need to, which is a nice touch. Plus, if you’re rocking an S55 engine, just a heads up: with this unresonated system, you might experience a bit of that “2k rasp” if you’re running a free-flow downpipe and shifting at low RPMs. But if you’re looking for that extra pop and flow, consider upgrading to a 200-cell high flow cat for a refined sound.
Features:
- Made from durable T304 stainless steel or lightweight titanium
- Electronic exhaust valves for seamless OEM integration
- Standalone valve controller available if you want more control
- 21.7 lbs lighter than the stock exhaust (stainless) and a whopping 49.2 lbs lighter (titanium)
- Fully mandrel bent for maximum flow
- Precision TIG welding for strength and durability
- 100% reversible—go back to stock whenever you want
Fitment:
- BMW M3 F80 (2015-2018)
- BMW M4 F82 (2015-2020)
- BMW M4 F83 (2015-2020)
So, if you’re ready to make your F8x sound like it should have from the start, this exhaust system is definitely worth checking out.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2015-2018 BMW M3 |
M3 | 2015-2018 |
|
2015-2020 BMW M4 |
M4 | 2015-2020 |
