yes the crash bar still in place I put the Front mount under it and I used 2.25 piping and my psi stayed the same and the core I got it from cxracing dont remenber the size and I still have the k03 ...

 

ok, good. I thought you might of gone 2.5" piping and that would of killed both spool and pressure

 

good thing you didnt go with 2.5" piping like me. im having some problems with it (way too big)

 

Yeah I did some search about the piping size before I bought it good thing if not that would of been a problem ...

 

your pipings is good for 400hp, not ~220hp[8D]

 

whats the hp limit for 2.25"?

 

I would go full 2.25" for up to 350hp and 2.25 to ic and 2.5 to tb above that. Doesnt mean you cant run something bigger, but you may lose spool or psi drop, depends also on the core used. You want the biggest piping available without lossing velosity (you would see lag/psi drop if you lost some).

 

say i did the FMIC with my k03 right now, and in 2 months i did the gt28rs set up, what is the best thing to do?

 

2.25" with a decent core. Wont hurt you either way. Its big enough for the tater and small enough for the ko3

 

from the pics above, would that be a good core to have for the gt setup or should i get a bigger one?