All Milltek performance exhaust systems are manufactured from T304L stainless-steel; giving you the satisfaction of knowing that our products are meant to last within some of the toughest environments. T304L is a highly durable form of stainless-steel that is far less susceptible to degradation and discolouration than many others of its kind, while it will last almost indefinitely.

Additional Info: Fits with Milltek Sport cat back exhaust system only - Requires 2 x 18307851168 for installation (available from local BMW dealer)