Well thts a great point thats why i might take years or never because with all the good engine parts I have the on the car,it is out of tune.But I just bought a scanmaster 2 after 10 years and I can hardly figure out about the 02 volts they flash from 200- 400 to 600 to 850-875, always 0 knock.I have to read this scanmaster manual.I wish it came with a book for directions.The best way of doing is racing the car and recording the lowest or highest 02 volts???Im not sure whether the highest or lowest volts are recorded on the scanmaster??.Your also right about maxing out the TE-44.It is a very underestimated turbo.It seems like 90% of the guys who have TE-44's run in the 11's.When guys with bigger turbo's like a PTE-52,53,54.te-61,te-62,te63 they rarely have 11 second time slips.You could say Im wrong but I have been on this board for about 2 hours every day for a year and the bigger turbo's excluding the big big TE-45 guys are running in the 12's with.With a bigger turbo the tuning becomes more difficult and that is the truth unless your an expert on Turbo Regals .Nah Im staying and getting the most out of my TE-44!!Plus I don't even have 200$ for the TE-60 and i probably wouldn't put it on for free!!