RVNG X3M/X4M 4” Modular True Single Exhaust System
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Description
Home of the original single quad-tip valved muffler.
Exhaust brace included. Deep tone, high flow, and a modular exhaust design built for both street and performance use.
RVNG 4” True Single Valved Quad-Tip Exhaust – F97/F98 X3M & X4M
The RVNG-designed 4” True Single Valved Exhaust System for the F97 X3M and F98 X4M was engineered to deliver maximum flow, an aggressive exhaust note, and a clean true-single layout from front to back.
Built from mandrel-bent 304 stainless steel, the system transitions the factory dual exhaust layout into a large 4-inch true single configuration designed to reduce unnecessary restriction while maintaining strong exhaust velocity and flow for high-horsepower S58 applications.
One of the biggest features of our 4” system is the included swappable resonated and non-resonated midsection. Every exhaust comes with both versions at no additional cost, allowing customers to change the sound of the system whenever they want.
The center section is secured using two V-band connections, meaning you can quickly swap between the resonated and non-resonated configurations without cutting, welding, or modifying the exhaust.
Run the non-resonated section when you want the loudest, most aggressive version of the system, or install the resonated section for a smoother and more refined exhaust note with reduced cabin resonance and drone.
The valved rear section gives you even more control over the sound. With the valve open, exhaust gases flow through the unrestricted performance path for maximum sound and flow. Close the valve and the system redirects exhaust through the quieter side of the muffler for a more refined driving experience.
Finished with RVNG’s signature quad perforated exhaust tips, the system combines aggressive styling, sound, and performance in one complete package.
Features:
- 4” true single exhaust design for the F97 X3M and F98 X4M
- Includes both resonated AND non-resonated midsections at no additional cost
- Two V-band connections allow the center section to be swapped in minutes
- Valved rear muffler for aggressive or refined sound
- Uses OEM exhaust valve functionality
- Compatible with aftermarket valve controllers
- Gains in horsepower and torque
- Mandrel-bent and TIG-welded 304 stainless steel construction
- Smooth-radius bends designed for maximum exhaust flow
- RVNG signature quad perforated exhaust tips available in multiple finishes
- Designed to work with OEM or aftermarket downpipes
- Exhaust brace included
- Designed and tested in the USA
- RVNG Lifetime Warranty against defects and fitment issues
Compatibility:
2020+ BMW F97 X3M
2020+ BMW F97 X3M Competition
2020+ BMW F98 X4M
2020+ BMW F98 X4M Competition
RVNG X3M/X4M 4” Modular True Single Exhaust System
FAQs
Answers to our most common questions below.
How Long Does Shipping Take?
All RVNG items ship within 1-3 days. If an item is out of stock the customer will be notified with the choice of a refund or an estimated timeline of delivery.
Do You Have Exhaust Parts For My Car?
We make a range of performance parts but we do not have something for every car. We choose to specialize in specific markets so we can always ensure we are selling the best products possible. As a small company who designs all new products and stocks all our items its hard to sell something for everyone but as we grow we are always looking to expand our catalog!
Do You Offer In Person Pick-Up & Installs In Cali?
Yes, We are located in Garden Grove in Orange County, California. We invite any of our customers to pick-up in stock items and for any install or car related work.
Will Installing These Parts Void My Factory Warranty?
Aftermarket performance parts can affect your factory warranty on related components under the Magnuson-Moss Warranty Act a dealer must prove the part caused the failure to deny a claim. We recommend speaking with your dealer or tuner. Our parts are precision-engineered to factory tolerances and we stand behind every product with our own Lifetime Warranty against defects and fitment issues.
Do These Parts Require a Tune?
Some parts particularly downpipes, intake kits, and fuel system upgrades strongly benefit from an ECU tune to see full performance gains and to prevent check engine lights. Parts like heat exchangers, oil coolers, and hardware do not require a tune. We recommend reaching out to us or your local tuner before purchasing if you're unsure.
What Is Your Return Policy?
We accept returns within 30 days of delivery on unused, uninstalled, and undamaged items in original packaging. Custom or made-to-order parts are non-returnable. To start a return, contact us at contact@rvngraceworks.com with your order number. Return shipping is the customer's responsibility unless the item arrived damaged or incorrect.
How Do I Know This Will Fit My Car?
Every RVNG product is developed and validated on the specific platforms listed. If your exact build year, model, or configuration isn't listed, contact us before ordering — we'll confirm fitment. We stand behind every part with our Fitment Guarantee: if it doesn't fit as described, we'll make it right.
If you have any questions, we're always welcome to help. We'll get back to you within 24 hours on weekdays.
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Shipping Information
All orders ship within 1-3 business days from our Garden Grove, CA facility.
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Customer Support
We're here to help. Reach out anytime and we'll get back to you within 24 hours on weekdays.
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FAQ's
Check out our FAQ section below for answers to our most common questions.
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Contact Us
Located in Garden Grove, CA. Stop by for pickup or install appointments — we'd love to meet you.
Built Bigger
Drawn to scale — bigger bore, more flow area
vs leading competitors
Rings drawn to scale · flow area = π(OD/2)²