Rvng Designed 4” & 4.5” True Single Valved Exhaust System (G80/G82) S58
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Description
HOME OF THE ORIGINAL SINGLE QUAD TIPPED VALVED MUFFLER
EXHAUST BRACE INCLUDED
DEEPEST TONE POSSIBLE AND LARGEST EXHAUST FLOW ON THE MARKET
RVNG 4.5″ True Single Valved Quad-Tip Exhaust – G80/G82 M3 & M4
There’s nothing else like it on the market. The RVNG 4.5″ True Single Valved Quad-Tip Exhaust is the first of its kind for the G80 M3 and G82 M4 platform — engineered to deliver unmatched flow, sound, and performance.
At the heart of the system is a massive 4.5″ mandrel-bent 304 stainless steel main section, the largest diameter exhaust available for this chassis. By maintaining a true single design from front to back, we eliminate the turbulence and restriction found in factory and dual-pipe aftermarket systems. The result is faster turbo response, maximum exhaust velocity, and a raw, aggressive note that stands apart from anything else.
When the valve is open, exhaust gases take the unrestricted 4.5″ path for the loudest, most aggressive tone possible. Close the valve, and the flow is redirected through a quieter route for comfortable cruising without drone.
Finished with quad RVNG signature perforated tips, the system blends OEM-inspired styling with motorsport-level performance.
Features:
- First and only 4.5″ true single exhaust for the G80/G82 platform
- Full valved system for on-demand sound control
- Gains in horsepower and torque when paired with a tune
- Mandrel-bent, TIG-welded 304 stainless steel for maximum durability
- Smooth, uninterrupted bends for maximum flow
- Signature RVNG quad perforated tips (available in multiple finishes)
- Designed to work with OEM or aftermarket downpipes
- Designed and tested in the USA
- RVNG Lifetime Warranty against defects and fitment issues
Compatibility:
- 2021+ BMW G80 M3
- 2021+ BMW G82 M4
DISCLAIMER
IF YOUR CAR IS VERY LOW TO THE FLOOR YOU MAY WANT TO WAIT FOR THE 4” VERSION
STOCK RIDE HEIGHT, H&R SPRINGS, AND MOST AFTERMARKET SPRINGS YOU WILL BE PERFECTLY FINE WITH THE 4.5”. WE ALWAYS COMPARE IT TO HAVE A NICE LIP ON YOUR CAR AND BEING A BIT LOW. YOU NEED TO UNDERSTAND HOW TO DRIVE DEPENDING ON YOUR SURROUNDINGS. THIS EXHAUST IS THE BEST SOUNDING AND PERFORMING BUT KEEP IN MIND IS THE LARGEST DIAMETER AVAILABLE, SO WITH THAT YOU WILL HAVE A LITTLE LESS UNDER-CAR CLEARANCE.
Rvng Designed 4” & 4.5” True Single Valved Exhaust System (G80/G82) S58
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 downpipes and exhaust systems for almost all BMW's. We choose to specialize in that market so we can always insure we are selling the best product possible for your Beamer!
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 — will require or 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 rvngperformance@yahoo.com with your order number. Return shipping is the customer's responsibility unless the item arrived damaged or incorrect.
Are Your Catless Downpipes Street Legal?
Catless downpipes are intended for off-road and track use only. They are not emissions compliant and will trigger a check engine light without an appropriate tune or O2 spacers. If you need a street-legal option, contact us — we can discuss catted alternatives depending on your platform.
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.