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The BMW X5M and X6M are already powerhouses in performance, but from the factory, the S63’s soundtrack leaves room for improvement. At Valvetronic Designs, “decent” isn’t enough—so we developed the ultimate valved exhaust system to amplify both performance and emotion.
Connecting directly to stock or aftermarket free-flow downpipes, this system features a 2.75-inch free-flow design from inlet to outlet, running completely unrestricted to the exhaust tips.
Valves Closed: Retains a refined, comfortable tone with no drone, perfect for daily use.
Valves Open: Unleashes an aggressive, motorsport-inspired roar with sharp gear-change snaps and a commanding presence.
Through testing, we found that an unresonated configuration produces the rawest and most exciting sound, delivering maximum character without sacrificing drivability.
Material: Premium T304 stainless steel for strength, durability, and corrosion resistance.
OEM Valve Integration: Retains factory electronic valve control for seamless operation.
Mandrel-Bent Tubing: Optimized for maximum flow and performance gains.
Precision TIG Welding: Ensures strength and a flawless finish.
2.75" diameter for improved flow
Available with your choice of 3.5" custom exhaust tips
9.8 lbs lighter than the factory exhaust
Electronic exhaust valves with factory-style control
100% reversible – return to stock at any time
2015–2018 BMW X5M F85
2015–2018 BMW X6M F86
This exhaust isn’t just an upgrade—it’s the transformation your X5M or X6M has been waiting for, bringing the S63 engine to life with the sound and presence it deserves.
Questions?
Small items arrive to you in under 1 week
Larger products like full suspension kits must ship freight and can take 1-3 Weeks
Instructions are included for most parts that require any sort of knowledge to install.
Here's what to do if your parts come WITHOUT instructions:
1. Some parts are genuinely common sense on how they get installed
2. If you can't figure it out on your own, YOUTUBE IS YOUR FRIEND! Our founder started this company from learning how to build headlights off a YouTube Video
3. If there are no videos on YouTube, or instructions anywhere on Google then please CALL OR EMAIL US and we will guide you through or get you instructions from the manufacturer
4. Doing installs on your own is always fun, but sometimes, it isn't. Always consider having your parts professionally installed
ALWAYS CONSIDER US. We sold you the parts, let us install them at THE LAB in Connecticut. We offer enclosed and open cross country transportation.
Of course you won't want to spend thousands on transportation to install lug nuts or emblems but if you are spending a LOT of money on parts, you may just want to send the car our way
If the part was NOT installed, we accept returns within 14 days of delivery.
If the part WAS installed (or attempted installation), we cannot accept a return.
All parts come with Manufacturer Warranty! Each manufacturer has different warranties so we suggest reading up on their warranty policy before ordering.
YES! If you come across a competitor with a lower advertised price than us, we will BEAT it by at LEAST 1%. Please contact us with proof of the lower priced product.
NO! We do not give out discounts or do sponsorships. You can get 5% OFF your first order by signing up for text & email notifications. OR just wait until our BLACK FRIDAY Sale that happens once a year.
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Phone: (475) 227-5381
Email: sales@legendsautoparts.com
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