


G8X M3 | M4 Single Exit Midpipe with Brace
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LAB G8X M3 | M4 Stainless Steel Single Midpipe
📦 STOCKED IN CALIFORNIA — Ships Within 1–2 Business Days
⏳ CURRENTLY ON BACKORDER — Arriving Late December / Early January
🏁 Engineered for Performance. Built for Precision.
Unleash a deeper, more aggressive exhaust note with the LAB Stainless Steel Single Midpipe for the BMW G8X M3 and M4. Designed to replace the restrictive factory mid-section, this upgrade dramatically improves exhaust flow while delivering a bold, refined sound that brings the S58 engine to life.
Constructed from high-quality stainless steel, this midpipe offers the perfect balance of durability, performance, and value—ideal for daily-driven builds and aggressive street or track setups.
WHY STAINLESS STEEL MATTERS
Exceptional Durability
High-grade stainless steel resists corrosion and wear, making it ideal for long-term performance use.
Heat & Sound Control
Handles high exhaust temperatures while producing a deep, full-bodied tone without harshness.
Performance Without Compromise
Improves flow and sound without introducing excessive rasp or drone.
Value-Driven Performance Upgrade
Delivers aggressive sound and proven performance at an accessible price point.
PERFORMANCE HIGHLIGHTS
3.5” High-Flow Single Midpipe
Optimized diameter increases exhaust flow, allowing the S58 engine to breathe freely and respond faster.
Deeper, More Aggressive Exhaust Note
Replaces the muted factory tone with a commanding growl under throttle while remaining composed at cruise.
Stepped Brace with Laser-Cut LAB Logo
Adds rigidity, ensures precise alignment, and enhances the undercarriage with a premium motorsport-inspired touch.
OEM-Style Bolt-On Fitment
Installs using factory mounting points with no cutting or permanent modification required.
VEHICLE APPLICATION
✔ BMW G80 M3 (2021+)
✔ BMW G82 M4 (2021+)
PLEASE NOTE
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Professional installation is recommended
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Compatible with factory and aftermarket exhaust systems
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Backordered units will ship immediately upon arrival (Late December / Early January)
Bold sound. Proven performance. Built to last.
The LAB Stainless Steel Single Midpipe is the go-to upgrade for G8X owners who want reliable construction and a dramatically improved exhaust experience.

G8X M3 | M4 Single Exit Midpipe with Brace
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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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.

