XX Boosted Si XX

I curently run 2.5 dp thats a straight shot to my apex n1 exhaust. I have the revhard turbo kit on my 00 Em1. I already make 305 whp on about 12psi with that exhaust. Next year im gonna run adleast 15-18lbs and I want a 3" setup. Do you guys think I should go 3" from the turbo back or from my cat back? also do you suggest kteller or thermal. anyone have any pics of keteller setups on a em1? I think im gonna run a cat though because im starting to get nautious driving my car sometimes with the test pipe. I run 750cc injectors with hondata and I dont think a cat will hurt it that much, or a highflow one. Any sugestions on exhaust setups? thanks

InTeGrA B18b1

if you dont need ac 3 inch would help the most. or a 2.5 dp to a 2.5--->3inch cat then 3 inch all the way.

XX Boosted Si XX

my ac is long gone......