BMW M5 F90 4-Inch Performance Exhaust System
Transform the sound, performance, and rear presence of your BMW M5 F90 with our premium 4-inch performance exhaust system. Precision-engineered for perfect fitment, this system is designed to maximize exhaust flow and deliver a deep, aggressive tone worthy of the twin-turbo V8.
Constructed from high-quality 304 stainless steel, the oversized 4-inch mandrel-bent piping reduces backpressure for sharper throttle response and stronger power delivery. Under acceleration, the exhaust delivers a bold, commanding sound while remaining refined during highway cruising with minimal drone.
Choose the finish that matches your build with 4-inch tip options:
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Dry Carbon Fiber Tips (4 inch)
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Forged Carbon Fiber Tips (4 inch)
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Polished Tips (4 inch)
Key Features
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4-inch mandrel-bent piping for maximum exhaust flow
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Premium 304 stainless steel construction
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Deep, aggressive sound with refined cruising tone
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OEM-style fitment for BMW M5 F90
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Multiple 4-inch tip options: dry carbon, forged carbon, polished
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Direct bolt-on installation with no cutting or modifications required
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Backed by a 3-year manufacturer warranty
Technical Specifications
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Material: 304 stainless steel
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Pipe Diameter: 4 inch
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Tip Options: 4-inch dry carbon fiber, 4-inch forged carbon fiber, 4-inch polished
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Fitment: BMW M5 F90 (2018+)
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Installation: Bolt-on
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Estimated installation time: approximately 2 hours
Package Includes
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4-inch stainless steel exhaust system
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Selected quad 4-inch tip option
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Installation hardware
Why Choose M Spec
At M Spec, we specialize in premium BMW performance upgrades built for real enthusiasts. Every product we offer is selected for fitment, quality, and long-term durability, so you get an upgrade that installs clean, performs hard, and looks right from every angle. With high-end materials, precise manufacturing standards, and a 3-year warranty, you can buy with confidence knowing your M5 is getting a serious, reliable exhaust solution.