Diesel Auto Power
Join Date: Feb 2006
Location: Layton UT
Thanked 1,373 Times in 1,089 Posts
the old s366 is quite laggy. Even a new super core or center section on an SXE366 would be a nice upgrade. Better turbine wheel/same fitment and more flow from the compressor and 0.66AR cover will mean faster spool and 10% more air.