MagnaFlow California Converter 16559 Features: Dyno Tested And Proven To Make Power Performance Gains In Horsepower And Torque Great Sound -Has A Smooth; Deep Tone Easy To Install 100% All Stainless Steel Mandrel-Bent. All Welded. Built To Last. Lifetime Warranty Height: 12.00 Width: 15.50 Length: 57.00 Weight: 52.00 lbs Fitment: 2010/BMW/550i//4.8L 4837CC V8 GAS DOHC Naturally Aspirated::Cat Back Performance Exhaust^^2009/BMW/550i//4.8L 4837CC V8 GAS DOHC Naturally Aspirated::Cat Back Performance Exhaust^^2008/BMW/550i//4.8L 4837CC V8 GAS DOHC Naturally Aspirated::Cat Back Performance Exhaust^^2007/BMW/550i//4.8L 4837CC V8 GAS DOHC Naturally Aspirated::Cat Back Performance Exhaust^^2006/BMW/550i//4.8L 4837CC V8 GAS DOHC Naturally Aspirated::Cat Back Performance Exhaust