Is it worth me changing to a Radtec RS500 i/cooler, at present running 803's, 3 bar , 4x4 i/cooler,standard T3 turbo 18-2opsi (288bhp on rollers at flywheel). I will be changing the turbo for a T34 at some point, but would I get any benefit from using a 500 sized i/cooler at the mo rather than the 4x4i/cooler considering i'm only running about 20psi, do you think I would notice any difference in power ?

Cheers Simon.