Product Details
About this part
MAD BMW G90/G99 M5 — H-Pipe Midpipe
Introducing the MAD H-Pipe Midpipe for the BMW G90/G99 M5, engineered to unlock the true sound of BMW's twin-turbo V8 while maintaining the refined character expected from a modern M car.
The factory midpipe heavily suppresses the exhaust note, leaving the S68 sounding quieter and more muted than it should. The MAD H-Pipe changes that by allowing both exhaust banks to communicate through a precision-engineered balance section, creating a deeper, fuller, and more aggressive tone without introducing unwanted rasp or excessive cabin drone.
Unlike a single midpipe, the H-pipe preserves the classic dual-exhaust layout while enhancing the natural V8 rumble. The result is a richer exhaust note with improved low-end presence, stronger acceleration sound, and a more refined overall character that's perfect for both daily driving and spirited performance.
Whether paired with the factory axle-back or the MAD axle-back, the MAD H-Pipe delivers a significant improvement in sound while maintaining excellent drivability.
Key Features
Designed specifically for the BMW G90/G99 M5
Classic H-pipe design enhances the natural V8 exhaust note
Deeper, fuller, and more aggressive sound
Increased low-frequency tone without excessive volume
Virtually zero drone during highway cruising
Smooth, refined exhaust note with authentic V8 character
Constructed from high-quality T304 stainless steel
Compatible with both the OEM axle-back and MAD axle-back
Direct fit to the MAD axle-back with no tuning required
Note: If connecting to the OEM axle-back, cutting is required.
Fitment
BMW G90 M5
BMW G99 M5 Touring
Fitment
Not sure it fits? Contact us with your car's year, model and VIN and we'll help you confirm before you order.
If a part doesn't fit as expected, contact us and we'll work with you to resolve it.
Majority of products have a fitment section in the product description or within the title.
Returns
- Unused, uninstalled parts can be returned or exchanged within 30 days of the order date.
- To start a return: Contact us first, don't use Return to Sender.
- Returns can have up to a 20% restocking fee.
- Built-to-order and special-order items can't be returned or cancelled once production begins.
Shipping
- Orders are processed 7 days a week to ensure your product ships as quickly as possible.
- Inspect parts within 10 days of delivery, and reach out regarding any damage or missing pieces.
See our Tariff Policy
Warranty
- All parts retain the manufacturer's warranty.
- Warranty claims are subject to the manufacturer's approval.