This complete exhaust is original Suzuki and has spare part code 1415033210 1416033210 1430133230 1430233230. After careful checks and inspections our technicians have found the following conditions: original Suzuki - good conditions - signs of rust - no dents - no breaks - no holes - solid - two welds on a manifold (see last photo) - when moving them you can feel rust inside. This complete exhaust is compatible with the following Suzuki models: GSX 400 F Katana 1981 1983 /