Im running 270's @ 10.25 but the intake is advanced pretty hard. They are too bloody big!
On my last setup (2.8, RS's, E85) at 1.75 bar we got 402 rwkw. at 2.0 it made 414 IIRC. It turns out the Kakimoto had a 2.5 inch restrictor in it.
New setup (2.8 -5's,E85 and a twin 3inch Racepace exhaust) it made 420 at 24 psi but then tailing back to 22.5psi (1.53 BAR) top end (EBC OFF). More power, on less boost and on smaller turbo's. What would it have done with the RS's? Mind you this -5 result is with a stock airbox too!There will be more tuning to be done and see what the -5's can do at 'whenever they stop making anymore power!'