




G90 M5 Catback Exhaust System w/ Valves
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Pickup available at LAB X Premium
Usually ready in 24 hoursIn stock! Ships within 1-2 business days.
2-Year Warranty (Defects)
Pairs well with
LAB Valved Catback Exhaust System — BMW G90 M5 (2025+)
In Stock • Ships From California • Tested & Perfect Fitment
The G90 M5 is a performance benchmark — and it deserves an exhaust system engineered to match its presence and capability. The LAB Valved Catback gives the S68 the deep, raw, and authoritative tone it should have left the factory with, while keeping refinement and control right at your fingertips.
This system has been installed and test-fitted by our team, ensuring perfect alignment, factory-level fitment, and a seamless bolt-on installation. No cutting. No welding. No compromise.
🔥 Turn Quiet Luxury Into Controlled Aggression
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Deeper, Louder, More Commanding Sound
Replace the muted OEM tone with a fuller, sharper, race-inspired exhaust note — without unwanted drone. -
3.5” Full Exhaust System
Optimized for unrestricted flow, improved response, and maximum performance potential. -
OEM+ Style Fitment
Designed specifically around the G90 chassis — clean routing, proper clearances, and zero modification required. -
Premium Valve Control System
Quiet when you need it. Violent when you want it.
🎛 Smart Valve Logic — Your Volume, Your Rules
Control the valves using factory M controls or switch to our included valve controller for full manual override.
Note: The factory ECU does not fully open valves under low RPM or Park. Our controller ensures 100% valve actuation for maximum sound on command.
🚀 Engineered for Enthusiasts Who Expect More
The LAB G90 M5 Valved Catback isn’t just a louder version of stock — it’s a full transformation of tone, character, and emotion behind the wheel. Every downshift pops. Every pull feels intentional. Every cold start sets a tone.
This is how the G90 M5 should sound.
⚠️ Professional installation recommended.

G90 M5 Catback Exhaust System w/ Valves
We’ve got you.
Whether it’s fitment questions, order updates, or install guidance, our team’s here to make sure you get the right parts, the first time. Fast replies, real support, no runaround.
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Shipping Information
We ship fast and nationwide. Most in-stock items leave our SoCal warehouse within 1–3 business days. You'll get tracking as soon as it’s on the way. Need it quicker? Expedited options are available at checkout.
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Customer Support
Questions about your order? Our support team is here to help every step of the way. Reach us by email or DM.
Fast responses, real solutions, no bots.
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Contact Us
Whether it’s about your order, install guidance, or wholesale inquiries, don’t hesitate to reach out.
📞 Phone: +1 (949) 371-5212
📧 Email: orders@legendaryautobuilders.com
📍 Visit Us: 21087 Commerce Pointe Drive, Walnut, CA 91789We’ll always do our best to get back to you quickly and take care of you the right way.

FreshhKiicks Install
When it comes to proper builds, FreshhKiicks knows what is takes to stand out. That's why he chose to go with LAB parts for his LCI X3M.
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