MAD BMW G90/G99 M5 — 5" Single Midpipe
ETA February 2026
Introducing the first-ever single midpipe for the G90/G99 M5 engineered by MAD to completely transform the car’s character and give the new M5 the sound it truly deserves.
The factory exhaust leaves a lot on the table, but this midpipe fixes that immediately. By converting the system into a true 5-inch single, the G90/G99 gains a deep, powerful, and aggressive tone while remaining incredibly clean in the midrange. With the exhaust pulses merged into one oversized pipe, the sound comes through with zero rasp, zero drone, and a richness the stock system simply can’t deliver.
We maximized every inch of available space underneath the car to build the largest midpipe the platform can physically support. The result is a tone that’s fuller, deeper, and more refined all while retaining the signature aggression an M5 should have from day one.
Whether paired with the stock axle-back or the MAD axle-back, this midpipe brings the entire system to life.
Key Features
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First-ever 5" single midpipe for the G90/G99 M5
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Delivers a deep, aggressive, and full-bodied tone
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True single design for the cleanest possible sound
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Zero rasp / zero drone across the entire RPM range
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Massive 5-inch diameter maximizes flow and exhaust pulse merging
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Smooth, refined exhaust note that still retains M-level aggression
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Works with both the stock axle-back and the MAD axle-back
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Direct fit to MAD axleback , no tuning required
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Note: If connecting to oem axle back cutting required.
Fitment
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BMW G90 M5
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BMW G99 M5 Touring