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Seraphim38 · 01-30-2012, 11:59 AM

Which would be better performance for a daily driven/HPDE/occaisional autox car: T25 tubular bottom mount with .72 external 44mm vband wastegate ATP housing, or T3 top mount with 38mm external wastegate?

T3 will flow more but I don't know about using a log manifold (though it won't be prone to cracking like the tubular one will do some day).

At this point there isn't a lot of difference in cost, except that with the top mount option I will have to buy a new turbo elbow, down pipe and intake.

01-30-2012, 11:59 AM	#1
Seraphim38 Zilvia Addict Join Date: Oct 2010 Location: Washington Posts: 810 Trader Rating: (6)	2871R; bottom mount tubular or T3 log? Which would be better performance for a daily driven/HPDE/occaisional autox car: T25 tubular bottom mount with .72 external 44mm vband wastegate ATP housing, or T3 top mount with 38mm external wastegate? T3 will flow more but I don't know about using a log manifold (though it won't be prone to cracking like the tubular one will do some day). At this point there isn't a lot of difference in cost, except that with the top mount option I will have to buy a new turbo elbow, down pipe and intake.