Rvng XL Flow Series 3.5” G9X/S68 M5 Catless downpipes

Rvng XL Flow Series 3.5” G9X/S68 M5 Catless downpipes

$799.99 USD $999.99 USD

Pickup currently unavailable at Rvng HQ

Out of Stock

Pick one: High Temp C series Cerakote

High Temp C series Cerakote
Uncoated

Product variants

Pairs well with

Description

RVNG XL FLOW SERIES G9X Catless downpipes

Unlock the full potential of your BMW S68-powered M5 with the RVNG XL Flow Series 3.5” Catless Downpipes, engineered from the ground up for maximum flow, power, and sound on the G90 and G99 M5 platform.

Unlike undersized or restrictive alternatives, RVNG’s XL Flow 3.5” design is purpose-built to eliminate bottlenecks in the exhaust path, dramatically reducing backpressure and allowing the turbos to breathe freely. The result is faster spool, sharper throttle response, and noticeable horsepower and torque gains—especially under high load and aggressive driving.

This complete system includes both primary and secondary catless downpipes, constructed from high-quality materials and featuring an integrated flex section to reduce vibration, thermal stress, and drivetrain movement. Every detail is focused on durability, performance, and real-world results.

What truly sets the RVNG XL Flow Series apart is value. Our 3.5” setup outflows everything else on the market while coming in at a price point that undercuts competitors—without sacrificing build quality or performance. No gimmicks. Just raw flow and proven results.

Designed for enthusiasts who demand maximum power, an aggressive exhaust note, and track-ready performance, the RVNG XL Flow Series is the ultimate upgrade for your S68 M5.

FOR OFF-ROAD USE ONLY

Key Features:

Designed specifically for BMW G90/G99 M5 (S68 engine)
XL Flow Series 3.5” diameter for maximum exhaust flow
Includes primary and secondary catless downpipes
Faster turbo spool and improved throttle response
Significant horsepower and torque gains
Aggressive, race-inspired exhaust tone
Integrated flex sections to reduce vibration and stress
Outflows and outprices all competing options on the market
Built to Kill. Proven to perform.

Share:

Share

Need help?

Fitment Guaranteed

Ships in 1-3 Days

Lifetime Warranty

30-Day Returns

Track Tested

Lifetime Warranty

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.