Originally Posted by
cossie51
Garrett G25-660 fitted to my cossie. Should be able to tell you how they perform by the end of the month once the mapping is all done. Just waiting on all parts coming back from ceramic coating.
my lad's been told that he will needs a turbo speed gauge fitted when mapping with the G25 to avoid over spinning the turbo. Never heard of that being needed, and what do you do with it afterwards? Seems an expensive luxury (£300+) just for a short period of time?
Any thoughts?