the cupra has just come back from it rip off 30k service and they have advised my turbo internals are going! so ive been looking around everywhere for a turbo upgrade thats not too pricey! got a quote from jbs for the jbs04 turbo stage2 without clutch upgrade for £2985.10p thats with custom map, jbs04 turbo, gaskets, injectors, and 4bar FPR and F-pump and labour. (id need to buy the maf housing and the cupra pd160 airbox lid) ive got all other mods needed so total will be £3k!!!!!!!
ive heard about the ko3s (turbo i have) being bored out and having ko4 internals ect fitted into the ko3s housing does anybody know how much this is and power increases possible???
any help would be great as it needs sorting asap!
rashcupra
ive heard about the ko3s (turbo i have) being bored out and having ko4 internals ect fitted into the ko3s housing does anybody know how much this is and power increases possible???
any help would be great as it needs sorting asap!
rashcupra

do you know anything about the ko4 internals in the ko3s body??
i was considering just getting the turbo and fitting and the remap for money reasons but then id be running alot less power and within months il be wanting the uprated bits then it will be a 3 hour drive back to jbs to get all the bits added and anouther 350 quid to have the remap played with again!!! not worth it so just gonna do it all