i have to say something here, i know not a lot to be honest just the basics, but two of my mates run charge coolers on there s2 and s1

the s1 had ather mods etc but rand at 26 psi and took a complete caining for a good 8 mths before it went in for a resto, after removing the head the pistons etc showed no signs of detting etc

i was totally godsmacked as i expected the car to pop as from day one

but

i also had a large grs cooler on a s2 and fook me did it go some with peak 22 psi held 19

i myself from looking elsewere favour the chargies


but then like i say i know shit

but would be intrested in other peoples views