Wats the max performance i can expect to get using a 4x4 I/cooler i currentl have a std 2wd item but hear there is a boost drop/lack of boost response on RS500 sized units if not running decently high PSI levels.
I want about 340bhp 26psi max with lagless boost from std compression will a 4x4 or 2wd item still handle temps? Will i notice the drop in boost using the bigger 500I/C. Is there something in between if so?

 

I think I will swap for a 4x4 item and a max of 25psi? Thanks for all your input

 

i got 28psi on 4x4cooler the temps are fine.

 

Cheers "the original", wats the best bhp/psi i can safely use my 2wd item upto? anybody got a 4x4 item for sale sensible price only thanks?

 

wat i would do "MrC" is invest in a secs monitor, then reset the peak held data, give your car some welly and see what the peak ACT is, if it's fine at a particular boost then no need to upgrade.....