I was wondering if i buy all these exhaust products like down pipe and mid pipe and intake for my twin t rx7 now, what will become useless once i decide to convert to a single turbo set up. should i jusst decide now to go single turbo set up or can i decide later without being left with a bunch of usless parts.thanks

 

dp will become useless, intake's will become useless, IC pipe from turbo to IC will become useless.

STEPHEN