/ PRODUCT ·EXHAUST

MAD S68 Axle Back Exhaust

Name: MAD S68 Axle Back Exhaust - G90 M5
Brand: MAD
Price: 1883.0 CAD
Availability: InStock

[ VERIFIED FITMENT ]

G90 M5

Exhaust Tip Finish

Brushed

Black

Carbon Fiber

$1,883.00

Shipping calculated at checkout.

Shipped from USA

Additions

MAD S68 Axle Back Exhaust

G90 M5

from $1,883.00

/ 01 · OVERVIEW

The MAD S68 axle-back exhaust transforms your G90 M5 with dual-valve technology and premium sound control. Available in brushed, black, or carbon finishes, this system features larger-diameter piping for enhanced flow and a compact muffler design that reduces weight while improving responsiveness. Dual valve motors with included controller let you dial in anything from refined cruising to aggressive performance driving. When paired with the MAD 5-inch midpipe, you'll unlock the deep, commanding exhaust note your M5 deserves—with the flexibility to adjust your tone on demand.

Features

Larger-diameter piping for increased flow
Includes two valve motors and valve controller
304 stainless steel construction
Lifetime warranty
Compatible with the stock midpipe or the MAD 5-inch midpipe
Note: If connecting to the factory midpipe, cutting is required

Fitment

BMW G90 M5

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Ships in 1-3 Days

Flat Rate Shipping

Fully Insured

Processing: In-stock items typically ship within 1–3 business days. We do our best to get every order out as quickly as possible. All orders are quality-checked and ship with full insurance coverage. If an item is out of stock, we'll reach out ASAP with an ETA.

Carriers: Carbon fiber and performance parts ship via UPS. Smaller items ship via USPS.

Tracking: You'll receive a confirmation email when your order ships with a tracking link — you can also track it anytime from the order page linked in that email. Allow 1–3 business days for tracking to update.

International: We ship worldwide. Contact us at sales@horizonmotorsport.com for international shipping quotes.

Signature: We may require a signature for high-value orders. Please be available during your estimated delivery window.

FEATURED BUILD

G80 M3 Competition

OWNER

AP2 Performance

Orange County, CA

SPEC SHEET

VR1 FRONT GRILLSP2 FRONT LIPPERFORMANCE V1 SIDE SKIRTSPERFORMANCE V1 DIFFUSERPERFORMANCE V1 INLETS

F80 M3

OWNER

Brian

Los Angeles, CA

SPEC SHEET

CS V2 FRONT LIPPERFORMANCE V1 SIDE SKIRTSV STYLE DIFFUSERPERFORMANCE V2 MIRROR CAPSGTS STYLE HOOD

@bbriaann_

A90 Supra

OWNER

Danny

Orange County, CA

SPEC SHEET

AG1 FRONT LIPAG1 SIDE SKIRTSAG1 REAR SPATS

OWNER

Brandon

Irvine, CA

SPEC SHEET

VR1 FRONT LIPCSL V1 FRONT GRILLPERFORMANCE V1 INLETSPERFORMANCE V1 MIRROR CAPSHM S58 CATBACK EXHAUST

Horizon Motorsport - Est. 2019

Built for BMW Enthusiasts

We specialize in quality aftermarket parts for BMW M-cars. Every part we carry is selected, inspected, and shipped with the same care you'd give your own build. Our goal: help you get your car looking and performing exactly how you envisioned it.

Learn More

/ ? · ASK A QUESTION

Have a question about this part?

Fitment uncertainty, install details, compatibility with other mods — whatever it is, our team replies personally, usually within 24 hours.

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MAD S68 Axle Back Exhaust

Additions

Features

Fitment

Built by Our Customers

AP2 Performance

Brian

Danny

Brandon

Built for BMW Enthusiasts

Have a question about this part?

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