This page contains descriptions and photo of upgrades that can be made to Nacra beach catamarans. Specifically this site is geared toward the Nacra 5.5 SL, but many of the upgrades can be performed on other Nacras or other similar catamarans.
Have an upgrade or tip or site you would like to share. Send me an e-mail and maybe it can be posted here or a link made.
ragenp*at**yahoo.com (replace *at** with @)