G8X M3 | M4 Titanium Catback Exhaust System w/ Valves
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Titanium Valved Catback Exhaust System — BMW G80 M3 / G82–G83 M4
Stocked & ships from California in 1–2 business days.
Experience the ultimate evolution of sound, performance, and weight reduction for the S58 platform. Our Titanium Valved Catback Exhaust delivers an exotic tone, razor-sharp responsiveness, and a deeper, more aggressive character — all while shaving significant weight from your factory system.
This system has been test-fitted and installed by our team to ensure perfect alignment, precision fitment, and zero rattle or stress points.
🔥 Why Titanium? The Ultimate Upgrade
Titanium takes exhaust performance to another level:
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Extremely lightweight vs OEM & stainless systems
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Sharper throttle response
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Higher pitch under load with exotic metallic resonance
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Enhanced power delivery with reduced back pressure
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Superior heat dissipation for consistent performance
This isn’t just louder — it’s cleaner, faster, and more refined.
Key Features
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3.5” Full Titanium System optimized for flow and power
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Exotic Sound Profile with deeper tone at idle and an F1-style scream at high RPM
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Factory Valve Compatibility — use your OEM controls or our controller for full valve control
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Laser-Cut Titanium Brace with a clean motorsport aesthetic
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Bolt-On Installation — no cutting required
Valve Control Options
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Works with factory exhaust valve system
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Optional remote controller available for full valve override
Note: OEM buttons do not fully open valves at idle, Park, or low RPM. Our controller allows unrestricted sound when you want it.
Who This Is For
This exhaust is for the enthusiast who wants:
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A lightweight high-performance system
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A richer tone without unwanted rasp
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Exotic titanium acoustics
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Premium materials with OEM-level fitment
If you want the most responsive, exotic, and high-end system for the G8X — this is it.
Compatibility
✔ BMW G80 M3
✔ BMW G82 / G83 M4
✔ xDrive & RWD
G8X M3 | M4 Titanium 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.
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FAQs
Do you offer financing or payment plans?
Yes. At checkout, you can use Shop Pay Installments or Affirm to split your purchase into easy monthly payments. Financing options, including potential 0% interest plans, are shown during checkout and are subject to approval.
Will this part fit my BMW?
Yes. Every product we sell is verified for specific BMW models and chassis. If you want extra peace of mind, you can send us your model, year, or VIN and our team will personally confirm fitment before you order. BMW fitment accuracy is a priority at Legendary Auto Builders.
Are your parts OEM-quality or aftermarket replicas?
We only carry high-quality aftermarket parts that meet or exceed OEM standards. Each product page clearly outlines materials, construction, and finish so you know exactly what you’re getting. We do not sell low-grade replicas or poorly made components.
Where do you ship from and how long does shipping take?
Most in-stock orders ship from our California warehouse within 1–2 business days. Standard U.S. delivery typically takes 3–7 business days depending on location. Made-to-order or specialty items may require additional production time, which is always noted on the product page.
Can I install this myself, or do I need a professional?
Many of our products are designed for direct bolt-on installation and can be installed at home with basic tools. For more complex parts—such as aero components or performance upgrades—we recommend professional installation for best results. If you have questions about install difficulty, just reach out.
What happens if the part doesn’t fit my vehicle?
If there’s a fitment issue due to an error on our end, we’ll make it right. Our team will help resolve the issue quickly, whether that means an exchange or another solution. Fitment accuracy matters to us, and we stand behind the products we sell.
Are your products tested for quality and durability?
Yes. All products go through quality checks and are sourced from trusted manufacturers. We work closely with suppliers and installers to ensure every part meets our performance and durability standards before it ever reaches your car.
Do your products come with a warranty?
Most items include a warranty covering manufacturing defects. Warranty length and coverage details vary by product and are listed on the product page. If you ever have a concern, our support team is here to help.