BMW M5 G90 Downpipes
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LAB BMW G90 M5 / G99 M5 Touring Downpipes – Track Use Only
📦 In Stock — Ships From Southern California in 1–2 Business Days
Unleash the full potential of your BMW S68-powered G90/G99 with LAB High-Flow Downpipes.
Engineered to dramatically improve exhaust flow and decrease backpressure, these downpipes deliver faster turbo response, increased efficiency, and serious power gains when paired with tuning.
Our reinforced flex-joint design minimizes vibration and stress on surrounding components, ensuring long-term reliability even under demanding track conditions.
⚠️ Track Use Only
These downpipes are not CARB-approved. They cannot be shipped to California residential addresses unless purchased and installed through a licensed performance facility. Contact your preferred shop to order.
✅ Performance Gains
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Faster turbo spool / reduced lag
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Significantly improved throttle response
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Increased horsepower + torque (gains up to 40–50whp on tuned setups)
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Built to withstand extreme heat + high boost
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Enhanced exhaust note — deeper, more aggressive tone
🔧 Key Features
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CNC-machined flanges for precise, OEM-style fitment
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Smooth, mandrel-bent high-flow piping
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Integrated flex section reduces drivetrain stress + vibration
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Premium TIG-welded stainless-steel construction for durability
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Designed for maximum flow + reliability in high-performance environments
🚘 Fitment
🟢 BMW G-Chassis S68 Platform
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2024+ BMW M5 (G90)
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2025+ BMW M5 Touring (G99)
BMW M5 G90 Downpipes
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.