Originally Posted by
SteveP
Agreed. The 2103 pipe works very well on this engine. The P3 has proven to be slightly fragile, so the team has been using the Sirio/Orion #5 or #6 turbo plug instead. The #5 is close to the P3 but seems to last a little bit longer, and the #6 is a shade colder, but certainly longer lasting.
I really want to try out the orion plugs, but none of the shops around me carry them.