G8X M2 M3 M4 - S58 Downpipes
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BMW G80 M3 / G82 M4 / G87 M2 S58 Catless Downpipes
Unleash the Full Potential of Your S58.
Transform the sound, response, and performance of your BMW with the LAB S58 Catless Downpipes for the BMW G80 M3, BMW G82 M4, and BMW G87 M2. Engineered for enthusiasts who demand power without compromise, these downpipes deliver faster spool, sharper throttle response, increased flow, and an aggressive exotic tone the factory system simply can’t match.
Stocked in California — Ships in 1–2 Business Days
Built from premium stainless steel and refined through 2 years of real-world testing, these are not generic off-the-shelf pipes—they’re a proven LAB system developed for fitment, durability, and performance.
Why LAB S58 Catless Downpipes Stand Out
✅ 2 Years of Proven Testing
Refined and road-tested over two years to ensure dependable fitment, durability, and performance under real-world driving conditions.
✅ Guaranteed No Check Engine Light
Engineered to help avoid CEL issues without the need for spacers—a major advantage over many alternatives.
✅ Cerakoted Heat-Resistant Finish
Finished in a premium matte silver Cerakote coating for increased thermal resistance, improved durability, and a motorsport-inspired look while helping reduce radiant heat.
✅ Integrated Flex Sections
Designed with flex joints to help reduce stress on the exhaust system, accommodate engine movement, and improve long-term reliability.
✅ High-Flow Catless Performance
Maximized exhaust flow for quicker turbo response, more power potential, and a deeper, more aggressive exhaust note.
✅ OEM-Style Installation Hardware Included
Complete with installation hardware for a straightforward install.
Performance Benefits
- Increased horsepower and torque potential
- Faster turbo spool and sharper throttle response
- More aggressive exhaust tone, burbles, and turbo character
- Reduced exhaust restriction versus factory catalysts
- Excellent foundation for tuned or higher-power S58 builds
Engineered the LAB Way
Unlike many aftermarket options, these downpipes were built with proper fitment and longevity in mind—not rushed to market. From the integrated flex sections to the heat-managing Cerakote finish, every detail was designed to perform.
Fitment
Fits:
- 2021+ BMW G80 M3
- 2021+ BMW G82 M4 / G83 M4
- 2023+ BMW G87 M2
What’s Included
- LAB S58 Catless Downpipes (Pair)
- Installation Hardware
- Integrated Flex Sections
- Cerakoted Matte Silver Finish
Why buy cheap and do it twice?
Get the downpipes engineered for sound, power, and proven fitment—the LAB standard.
Professional installation recommended.
⚠ For off-road / motorsport use only. Check local emissions regulations before purchase.
G8X M2 M3 M4 - S58 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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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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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.