add the new JATO pipe from CVEC, and you'll notice a nice difference in performance.

http://www.horizonhobby.com/Shop/ByC...odID=CVERC180R

You should be able to find this pipe at you local hobby shop, or order it from Horizon Hobby, or Great Planes (towerhobbies)

You'll get up in RPM's faster, and gain more top end. Direct fit, made in the USA, CNC machined from a solid Aluminum stock.