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The F90 M5 carries on the S63 4.4L twin-turbo legacy—but its factory exhaust leaves the soundtrack on mute. The Valvetronic Designs Valved Titanium Cat-Back unlocks the voice this car deserves: refined when you want it, ferocious when you don’t.
Built from Grade 5 titanium with 3.0" tubing from inlet to outlet, the system integrates seamlessly with factory control or runs on a standalone remote for full command in any drive mode. Finish it with your choice of premium tips and let the M5 sing.
Forward, Large Cross-Section X-Pipe: Increases scavenging, smooths tone, and virtually eliminates unwanted rasp—especially on cars with aftermarket downpipes.
3.0" Free-Flow Architecture: Reduces back pressure for sharper throttle response and a cleaner top-end note.
Valved Control, Your Way: Tie into the car’s ECU (Sport/Sport+) or use the included standalone remote for instant open/close in any mode.
Valves Open: Deep, exotic V8 character with crisp overrun and engaging burbles—without the buzzy, raspy edge common on other setups.
Valves Closed: Subtle, composed tone for daily commuting and highway cruising.
Flexible Integration: Choose factory valve integration or standalone remote control.
Material: Ultra-light Grade 5 titanium throughout.
Weight Savings: 56.5 lb lighter than the factory exhaust.
Craftsmanship: Precision TIG welds and smooth, high-flow routing.
Tips: Multiple finishes available to complement your M5.
2018–2023 BMW M5 (F90)
Direct bolt-on cat-back replacement to OEM mounting points.
100% reversible—return to stock at any time.
Full Grade 5 titanium valved cat-back system
Forward large cross-section X-pipe
Electronic valves with standalone remote (factory integration harness option)
All necessary clamps and hardware
Tubing Diameter: 3.0" inlet to outlet
Material: Grade 5 titanium
Valves: Electronic; standalone remote or OEM integration
Weight Savings: 56.5 lb vs. OEM
Design: Forward X-pipe for scavenging and tonal balance; drone-free calibration
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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