Revel Medallion Touring-S Catback Exhaust 02-05 Honda Civic Si Hatchback | T70049RPart Number: T70049R 2002, 2003, 2004, 2005 Honda Civic Si Hatchback Pipe Diameter: 60 mm Tip Diameter: 100 mm Constructed from full SUS304 stainless steel for corrosion resistance & durability, and 1. 5mm wall thickness piping for increased strength and reduced resonation. The piping is also mandrel bent in order to retain the same piping diameter at the bends thus optimizing exhaust flow characteristics. Fully Hand Tig Welded and utilizes laser cut