This product is a high quality centre exhaust section for the BMW M6 E63 E64 V10, 2005 to 2010. Fully mandrel bent and TIG welded from 304 grade stainless steel, the exhaust features high flow performance 200CPSI catalytic converters and is a direct fit product. The exhaust is compatible with OEM as well as our cat back exhaust section. The sound produced is a little higher pitched than OE with a much sportier sound overall. Lifetime guaranteed, with both of these products fitted you will never need another exhaust for your M6 E63 or E64.