okok since we are on this topic your question at the beginning of the thread is which one can make improve your cars performance right?Wowo..please bck to our topic...
ok so assuming you can only choose one or the other and once you choose one you cannot get the other one under any procuring circumstances than i would choose $$ as well because if i have the knowledge but i am not able to get any $$ after that i guess i cant get anything done either
so does that answer you question thread starter