Description
The CarBahn Performance Stainless Steel High-Flow Exhaust System is a full cat-back exhaust solution designed specifically for the BMW G90 M5. Engineered by Steve Dinan and the CarBahn engineering team, this system combines motorsport-inspired performance with OEM-level drivability, delivering improved exhaust flow and a more aggressive sound without sacrificing everyday comfort.
Constructed entirely from premium stainless steel, the CarBahn exhaust system is designed to withstand extreme heat cycles and long-term use while maintaining its structural integrity and finish. Unlike a simple axle-back or muffler replacement, this is a complete cat-back system engineered to improve exhaust flow, reduce backpressure, and enhance the performance character of the G90 M5.
The system retains the factory catalytic converters and integrates with the OEM electronic valve control system. During normal driving, the factory-controlled valves remain closed to provide a refined and mellow exhaust tone with zero drone, making the system suitable for daily driving and highway cruising.
Under wide-open throttle, the electronic valves open to increase exhaust flow and produce a deeper, more aggressive exhaust note that complements the performance of the G90 M5 without excessive volume or harshness. This provides a dual-character exhaust system that remains refined when needed and becomes more aggressive under hard acceleration.
Key Features
- CarBahn-specified design engineered by Steve Dinan for the BMW G90 M5
- Full stainless steel cat-back exhaust system
- Not simply a muffler or axle-back replacement
- Retains OEM catalytic converters
- Retains OEM electronic exhaust valve control
- Refined and quiet exhaust character during normal driving
- Aggressive exhaust tone under wide-open throttle
- Zero drone during cruising and highway driving
- Improved exhaust flow
- Reduced backpressure
- Precision-engineered fitment
- Designed for OEM-quality installation
- Direct bolt-on system for the BMW G90 M5
- Stainless steel exhaust tips included
- Optional CarBahn carbon fiber exhaust tips available
- Designed to withstand extreme heat cycles and long-term use
- Backed by CarBahn engineering and USA-based support
Fitment
- Make: BMW
- Model: M5
- Vehicle Years: 2025 and 2026
- Transmission: Automatic
- Chassis: G90 and G99
- Body Styles: Sedan and Touring
- Engine: S68
- Part Number: CBB07-00-1134
Product Specifications
- Type: Exhaust Systems
- Vendor: CarBahn
- Make: BMW
- Exhaust Type: High-Flow Cat-Back
- Construction: Stainless Steel
- Exhaust Tips: Stainless Steel
- Optional Exhaust Tips: CarBahn Carbon Fiber
- Valve Control: OEM Electronic Valve Control
- Catalytic Converters: OEM Retained
- Part Number: CBB07-00-1134
- Engine: S68
Installation Support
The CarBahn Stainless Steel High-Flow Exhaust System is designed as a direct bolt-on system with precision-engineered connection points for proper alignment and a secure, leak-free installation.
Follow the manufacturer's exhaust clamp installation procedures to ensure proper installation and sealing.
