This is a custom built, one-off prototype Sisken F1 exhaust system. The midpipe is catted and resonated (Cats and resonators are stainless). The stock resonators that were on here were replaced with larger magnaflow resonators. The mufflers are titanium with matte black adjustable tips and would fit on an E90 or an E92. The mufflers are also valved and come complete with a remote system that will give you the ability to control the exhaust between sounding slightly louder than stock and like a full blown F1 car. Fit and finish is right on the money and the system as a whole weighs quite a bit less than the stock exhaust.
RETAIL ON THIS SYSTEM WAS $4800, ASKING FOR $2300 OBO
WILL SHIP AT BUYERS EXPENSE