Pro Mod exhaust pipes (Coffmans, Factory-Pipe and West Coast) totally brand new are available from Champions store in Athens, Greece. Those pipes are ideal for those who want to upgrade the overall performance of their ski. The pipes are available with the exhaust manifold too. Each pipe costs $500.00. Champions store also has a complete West Coast Pro Mod engine as well as many impellers, intake grates, ride plates etc. for the old school skis. Contact the #1 personal watercraft store in Greece via its web site (www.championsjetski.com).