Originally Posted by tunertype
For a cheap bolt on replacement get the blouch 20g. for about double that you can get a twin scoll kit and get better spool up on a big turbo. bigger turbo and conservative boost will give you more reliability because you'll be running more in the efficiency range.
you might want to clarify. you aren't saying a twin scroll will spool faster than a 20gxt are you?
i can understand if you mean: a twinscroll setup will have great spool for a big turbo, but will only spool a little later than a 20gxt