Engine question: Novarossi or O.S.

[motoxer4life]

how about exhaust pipes for the os engines and how about starter boxes for them. any recommendations? and i was just wondering like i have a rotostart for my savage x. say i had a rotostart on the os engine would i still be able to use a starter box or do i have to have a special setup for a starter box? Like can i put a pullstart on the engine and use that when i feel like it and use the starter box whenever i feel like it?
Thanks alot, Nick.

p.s. Sorry for being a post whore im new to racing and im just trying to learn alot of stuff about it rwal quick before i get my 8ight.