To receive a full refund they must be returned within 60 days of receiving the upgraded turbos. If it goes beyond 60 days then it is half credit up to 90 days which would be no credit.
Dyno Thread Link –
https://f80.bimmerpost.com/forums/showthread.php?t=1384960
Our new STG2+ upgrade turbos are here to push the envelope even further.
Almost 130whp gain PS2+ vs. PS2
Almost 130whp gain PS2+ vs. PS2
Max PSI Built Engine, FBO, 671whp/557wtq on 93 pump gas and
827whp/791wtq on E85
Pure Turbos EU M3 852whp
625whp on pump gas
