Traction problems with the stocker are because boost comes on so quick. Of the three options, I think the 58 trim spools the fastest, then S3 then the 50 trim. Although I should mention the 50 trim may spool the "slowest", but it's still full boost by 3200 RPM. If I go aftermarket I'm thinking 50 trim with a safe boost level as opposed to pushing the 58 trim fairly hard. I still don't know if I can pass up S3.
