BMW G8x M3 / M4 Valved Sport Exhaust System
BMW.G8X.M3.VSES.BR.BRSH
BMW G80 M3 / G82–G83 M4 Exhaust System
Single 3.5" Equal-Length Mid-Pipe + Optional Valved Axle-Back (T304 Stainless or Grade 5 Titanium)
Overview
The G80/G82/G83 is a phenomenal M car—its soundtrack just needs to catch up. Our single 3.5" equal-length mid-pipe unlocks the character the S58 deserves without requiring changes to the OEM rear section. Add the Valvetronic Designs valved axle-back for even more presence and control.
Compatible with OEM downpipes or free-flow front pipes, this system is engineered to deliver a higher-pitch, refined note with zero check-engine lights.
Sound With Free Flow Downpipes:
Sound With Stock Downpipes:
Why It Works
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Equal-length design: Balances exhaust pulses for a smoother, higher-frequency tone.
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Single 3.5" mid-section: Optimized flow for improved response and power throughout the rev range.
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Modular by design: Pairs with OEM or aftermarket rear sections; upgrade path to our valved axle-back at any time.
Sound & Control
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With stock downpipes: Noticeably crisper, more engaging tone without drone.
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With our valved axle-back (optional): Quad-chamber muffler and OEM-style valves deliver daily-driver civility closed, and an aggressive, motorsport edge opened—at the touch of a button.
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No CEL: System is designed to avoid check-engine lights.
Construction & Options
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Materials: T304 stainless steel or ultra-light Grade 5 titanium.
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Weight savings: Up to –57.8 lb (Titanium) or –24.7 lb (Stainless) vs. factory.
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Craftsmanship: Precision TIG welds, fully mandrel-bent tubing, and included cross brace for rigidity.
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Tips: Premium double-wall or single wall tips included.
Valve Integration
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Electronic valve control with included controller for rapid open/close.
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OEM integration available if you prefer factory valve control behavior.
Fitment
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2020+ BMW G80 M3
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2020+ BMW G82 M4 (Coupe)
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2020+ BMW G83 M4 (Convertible)
Installation Notes
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Mid-pipe and axle-back can be installed independently.
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When installing only a mid-pipe or axle-back, make the rear-section cut at the second dimple on the OEM pipe to ensure proper fitment.
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100% reversible—return to stock at any time.
- CLICK HERE FOR INSTALL GUIDE
Compatibility Notice (V3 Systems)
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V1/V2 components are not compatible with V3.
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The V3 mid-pipe includes additional clearances at the downpipe connection and mid-section; small visible gaps prior to tightening are normal and by design.
What’s Included
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Single 3.5" equal-length mid-pipe assembly
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Cross brace
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Optional: Valved axle-back with controller and tips
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Hardware and clamps
Specifications
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Tubing diameter: 3.5" mid-pipe; 2.75" axle-back
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Materials: T304 stainless steel or Grade 5 titanium
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Finish: Brushed (Stainless) or raw/brushed (Titanium)
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Valves: Electronic, with remote controller (OEM integration available)
BMW G8x M3 / M4 Valved Sport Exhaust System
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Most in-stock items ship within 2–3 business days from our U.S. warehouse or directly from the manufacturer. Custom or made-to-order parts may have extended lead times, which will be noted on the product page.
Once your order ships, you’ll receive tracking details via email.
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Customer Support
Need help with fitment, product details, or installation? Our team of enthusiasts is here to help.
You can reach us anytime through our contact form or at info@houseoffuel.co — we typically respond within 24 hours on weekdays.
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FAQ’s
Common questions are answered directly on our [FAQ page], including details about shipping, returns, warranty coverage, and how to verify product fitment.
If you can’t find what you’re looking for, just reach out — we’ll make sure you get the right information before you order.
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Contact Us
Have a specific question or request? Use our contact form or email us at info@houseoffuel.co.
We’re available Monday–Friday and typically respond within one business day. For partnership or dealer inquiries, please include your company information and brand interest.
FAQs
Please read our FAQs page to find out more.
How do I know if a part fits my car?
Every product page includes detailed fitment information covering model, year, and variant. If you’re unsure, reach out to our team with your VIN or vehicle details — we’ll confirm compatibility before you order. Our goal is to ensure every part fits the first time.
Are you an authorized dealer for the brands you carry?
Yes. House of Fuel works directly with our manufacturing partners and authorized distributors to guarantee 100% authentic products. This ensures you receive genuine parts backed by the full manufacturer warranty and support.
How long does shipping take?
In-stock items typically ship within 2–3 business days. Lead times for made-to-order or imported parts vary by brand, and estimated delivery windows are listed on each product page. You’ll receive tracking as soon as your order ships!
What is your return policy?
We accept returns within 14 days of delivery on new, unused items in their original packaging. Custom, special-order, or electronic components may be non-returnable. For all return requests, contact us first — we’ll help you through the process quickly.
Can I order a part that isn’t listed on the site?
Yes. If you’re looking for a specific brand or part not currently on the website, send us a message. Our sourcing team can often locate or special order it directly from the manufacturer or distributor network.