Valvetronic Designs
BMW F8x M3/M4 Equal-Length Valved Exhaust System
This valved cat-back exhaust system for the BMW F8x M3/M4 features an equal-length mid-section and H-pipe, offering a rich, balanced sound with dual-mode operation for daily driving.
USD 2999.99
- This system features a 2.75-inch equal-length mid-section with an H-pipe feeding into a 3.5-inch axle-back.
- The equal-length design smooths the exhaust tone across the rev range while preserving the aggressive character owners love.
- With valves open, gases exit freely from the passenger-side tips for maximum volume and performance.
- With valves closed, flow is routed through our quad-chamber muffler to the driver-side tips for a quieter, more refined note—ideal for daily driving.
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BMW F8X M3/M4 Valved Cat-Back Exhaust System Equal-Length 2.75" Mid-Section with H-Pipe and 3.5" Axle-Back (T304 Stainless Steel or Grade 5 Titanium) Overview The S55 engine powering the BMW F8X M3 and M4 is a performance masterpiece, but its stock exhaust note has long been criticized for excessive rasp and a lack of tonal depth. The Valvetronic Designs Equal-Length Valved Cat-Back is the definitive solution—eliminating the factory harshness and unlocking the rich, balanced sound the S55 was always capable of producing. This system features a 2.75-inch equal-length mid-section with
Quick answer: BMW F8x M3/M4 Equal-Length Valved Exhaust System Valvetronic Designs BMW F8x M3/M4 Equal-Length Valved Exhaust System This valved cat-back exhaust system for the BMW F8x M3/M4 features an equal-length mid-section and H-pipe, offering a rich, balanced sound with dual-mode operation for daily driving. USD 2999.99 This system features a 2.75-inch equal-length mid-section with an H-pipe feeding into a 3.5-inch axle-back.…