Milltek Audi S4 4.2 V8 quattro B7 Saloon/Sedan‚ Avant‚ & Cabriolet 2004-2009 Cat-back Exhaust - Non Resonated EVO This includes:

This includes:

Made from high quality aluminium

Treadstone's intercooler have a high heat-dissipating internal fin design

Developed to decrease back pressure

Milltek Audi S4 4.2 V8 quattro B7 Saloon/Sedan‚ Avant‚ & Cabriolet 2004-2009 Cat-back Exhaust - Non Resonated EVO This includes: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.