[Shane@DBPerformance]

Just do it. I had HKS 272s on my 2.4l. A bigger TB and i/c piping might help some, but ppl have made 800+ on 2.5" piping and stock 1G TB. Hondas make 600+ on 60mm TBs all the time. The big questions are does your turbo have more in it, how big is your exhaust, and how restrictive is your FMIC(flow often matters more than cooling on high boost cars). exhaust, FMIC, turbo or cams are often the problem when you hit a HP wall. You could do better than the 272s, but whatever. Take your current powerband and shift it to the left 500rpms, thats your worst case scenario, more power downlow but power will start dropping at an early RPM. If everything can keep up with the 2.3l, then you make 40-50whp more at the same boost.