BMW F80 M3 & F82 M4 S55 Equal Length Midpipe & Under Brace Stencil and a rich turbocharged tone

and a rich turbocharged tone that wakes the car up without overwhelming cabin comfort

refined soundtrack at cruising speeds

Extra 10 mm damper travel for improved bump absorption and stability

Focus ST225 Mk2 downpipe upgrade

640i 650i adjustable shocks

BMW F80 M3 & F82 M4 S55 Equal Length Midpipe & Under Brace Stencil and a rich turbocharged toneWelcome to the BMW F80 M3 & F82 M4 S55 Equal Length Resonated Exhaust Mid Pipe from SLN Performance. This is the best value solution to the F8X sound problem. For years enthusiasts have wanted to find a solution to the buzzy and raspy sound these cars produce from the factory. Since these cars were released back in late 2014, we all knew there was world class sound lying under all the rasp. SLN's mission has been to find this hidden sound and allow