Ok, thanks for the info. I ask because Im currently running a stock turbo and transmission but plan to get a TA49 soon. I know they spool better with a slightly higher converter, so I was looking into a restall. Currently my car gets bout 23 mpg highway, and I was hoping it would stay pretty much the same. I dont boost a whole lot, but when I do, Id like the power to be there :biggrin: