G8X S58 Valved Stainless Steel Catback Exhaust

Our G8X M2/M3/M4 Stainless Steel Valved Catback delivers the tone, flow, and quality that the S58 deserves. Built from T304 stainless steel with full valved functionality, this system sounds incredible whether you're cruising quiet or running wide open.

NOTE:

For the videos on this product listing the G80 M3 is paired with catless downpipes & the G87 M2 is paired with stock downpipes.

T304 Stainless Steel Construction

T304 stainless steel is the industry standard for high-performance exhaust systems. It offers superior corrosion resistance, handles extreme heat without warping, and maintains a clean finish over time. Every pipe is mandrel-bent for smooth airflow, and every joint is TIG-welded for strength and a factory-quality finish.

Valved Sound Control

Quiet mode for the morning commute. Wide open for when you want the neighborhood to know you're leaving. The integrated valve system puts full control of your exhaust note at your fingertips. Every system includes the valve controller and all wiring for a plug-and-play setup.

Maximum Flow, Minimum Restriction

Less restriction, more power. Our single mid-pipe design is engineered for maximum sound output and the least possible restriction, letting the S58 breathe exactly how it should. Pairs with stock, catted, or catless downpipes.

Bolt-On Fitment

Engineered for direct fitment with OEM mounting points. A built-in flex section handles drivetrain movement and makes installation straightforward. No cutting, no guesswork, no headaches.

Tip Options

Multiple exhaust tip designs available to match your setup and your style.

Key Features

T304 stainless steel construction
Valved muffler with wireless controller (you can also use stock valves)
Single mid-pipe for maximum flow and sound
Mandrel-bent piping for optimized airflow
TIG-welded joints throughout
Direct bolt-on fitment with flex section
Lighter than factory exhaust
Multiple tip options available

What's Included?

Full T304 stainless steel catback exhaust system
Valved muffler with controller and wiring harness
Flex section for simplified installation

Fitment

2023+ BMW G87 M2 (S58)
2021+ BMW G80 M3 (S58)
2021+ BMW G82/G83 M4 (S58)

Lead Times

Prep & Packaging: 5–7 days
Oversized Freight Shipping: 7–10 days

We strive to keep this product in stock at all times but during high demand back orders can occur and you will be notified. The processing/lead time above is just a estimate and time may be shorter or longer subject to availability. Email support@cencalmotorsport.com for the most accurate current lead time!

Order Terms

Because these exhausts are high demand, all sales are final. Additionally no charge backs are tolerated on this product under any circumstances. By purchasing, you acknowledge and agree to these terms.

⚠️ THIS PRODUCT IS FOR OFFROAD USE ONLY

60 Second Sound Clip:

This product is for off-road use only.

Every CenCal order is eligible for Package Protection, powered by Redo. It is selected by default at checkout and covers your shipment against loss, theft, and damage in transit.

What it covers:

Lost packages confirmed by the carrier
Stolen packages marked as delivered but not received
Items that arrive broken or damaged in transit

Resolution: Approved claims receive a full replacement at no cost. For damage claims, you keep the damaged item and receive a brand new replacement.

Claims must be filed within 7 days of the delivery date. See the full policy or email support@cencalmotorsport.com if you need help.

If protection is removed at checkout, CenCal cannot file a claim or accept responsibility for shipping issues.

BMW G8X M2/M3/M4 S58 CenCal Valved Stainless Steel Catback Exhaust