For those people who want to get more out of their 911 but want to keep a factory-stock appearance, we offer these original-style sport exhaust. This race-only exhaust has a much more aggressive sound, perfect for track driven cars. The name dansk has been synonymous with high performance and stock replacement for years on Porsche vehicles. Dansk mufflers are some of the finest exhaust systems available. Quality constructed and factory fitment while maintaining the o.e look, keeping your Porsches high value.