I'm trying to decide between a Tallboy or a Version 5 Plenum..any input??? Thanks

 

I'm also wondering about the plenum options. Spacer vs whole plenum?

 

Try searching the FI forum, this one and the main engine/dt/fi forum for threads with plenum in the title -- You'll have plenty of reading and dyno charts. That said, if you're going with an APS TT or ST, get the APS plenum. If you're going with any other turbo or staying N/A, just get the Crawford or even a plenum spacer.

 

Posted this in the G35 Driver Forum for you:

Crawford is a Great Company to do business with. I have all their bolt-ons. My gains have been documented by the Dyno. All the products worked as advertised out of the box. Crawford is one of the good guys who makes stuff that is properly designed and works.

Lou

 

+1. Good luck.

 

From what I've seen the aps works better with all f/i apps... and crawford is better for Na... theres your answer