Hi there, I have a mk4 1.8t golf and the turbo has just expired, i plan to upgrade rather than replace original turbo (KO3) I have little knowledge on turbos. Would upgrading to a K03s be a good move???? Or could anyone recommend a better option, which wouldn't break the bank! Thanks
getting it chipped can give an extra 40bhp+ on the ko3. ko3s is also a good upgrade but would also need mapping.