Rvng 4.5” Single Mid pipe (G80 M3/G82M4/G87M2)
Couldn't load pickup availability
Pickup available at Rvng HQ
Usually ready in 24 hoursPairs well with
Description
Rvng SS304 Stainless Steel Dual to Single Midpipe — 4.5” Edition
INSTALL GUIDE: https://youtube.com/shorts/RJAP2U4y9cM?si=s0ZE-3YfhISRTALF
For your 2020–2025 BMW G80 M3, G82 M4 & G83 M4 (S58 Engine)
INCLUDES EXTENDED BRACE
We’re proud to introduce the Rvng 4.5” Stainless Steel Single Midpipe — the largest and most aggressively engineered midpipe solution for the S58 platform. Unlike the typical 3.5” midpipes that every other company is offering, our 4.5” design delivers a massive 65% increase in flow area, unlocking performance gains you can truly feel.
This upgrade isn’t just about size — it’s about making the most of your S58’s potential. By removing the restrictive OEM midpipe and going beyond the industry-standard 3.5” setup, we’ve reduced backpressure to a minimum, resulting in faster turbo spool, sharper throttle response, and a raw, aggressive exhaust tone that sounds just as powerful as it feels.
Why 4.5” Matters:
We all know an Inch can go a long way. So while most companies settle at 3.5” and sell it as the standard — Rvng chose to offer a better product at a competitive price. When you realize you’re spending premium dollars, don’t you want the best? Our 4.5” system offers 65% more flow area, and when airflow improves, horsepower follows. Choosing Rvng means you’re not settling — you’re demanding more.
Key Benefits:
- +20HP / +32 TQ to the wheels
- 65% larger flow capacity over standard 3.5” pipes
- Faster turbo spool, improved throttle response
- Deeper, more aggressive exhaust tone
- ~17 lb weight reduction compared to OEM
- Direct bolt-on fit for G80 M3, G82/G83 M4 (cutting required)
- Fully compatible with OEM and aftermarket downpipes
- MPE compatible
Build Highlights:
- Mandrel-bent, TIG-welded 4.5” 304 stainless steel
- CAD/CAM flange design for smooth transition
- Optimized radius bends for maximum flow
- Lifetime warranty on fitment and craftsmanship
- Fits both LHD and RHD models
IF YOUR CAR IS LOWERED YOU MAY HAVE ISSUES WITH SCRAPING OVER SPEED BUMPS. SMALL AND OCCASIONALLY LARGE SCRAPES WILL CAUSE NO HARM TO THE ACTUAL PRODUCT.
IF YOU ARE SUPER LOW OR PLAN ON BEING LOW TO THE FLOOR THIS PRODUCT MAY NOT BE FOR YOU. WE WANT ALL CUSTOMER TO BE HAPPY WITH THEIR PRODUCTS.
Vehicle Fitment:
2020–2025 BMW G80 M3
2020–2025 BMW G82 M4
2020–2025 BMW G83 M4 Convertible
Rvng 4.5” Single Mid pipe (G80 M3/G82M4/G87M2)
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.
-
Shipping Information
All orders ship within 1-3 business days from our Garden Grove, CA facility.
-
Customer Support
We're here to help. Reach out anytime and we'll get back to you within 24 hours on weekdays.
-
FAQ's
Check out our FAQ section below for answers to our most common questions.
-
Contact Us
Located in Garden Grove, CA. Stop by for pickup or install appointments — we'd love to meet you.