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0L's exhaust note into a truly exotic sound with a significant increase in volume
One-piece CNC mandrel bent tubing
Increased downforce by moving the rear wing farther from the car body into a higher airstream just like a cup car
This allows for a stealthy installation that is easy to conceal from unwanted attention
Fabspeed BMW M3/M4 (G80/G82) Valvetronic Exhaust System (2021+) Performance brakes 981 Free Shipping in 48 StatesThe Fabspeed BMW M3 & M4 Valvetronic Exhaust System offers a superb plug and play upgrade to the restrictive and quiet OEM exhaust. Adding a significant increase in tone, volume, and power. We use Helical valves imported directly from the U. K. to eliminate any risk of valve failure that plague many other options on the market with low quality exhaust valves. SOUND: The Fabspeed Motorsport Valvetronic Exhaust System relieves you of the subtle OEM