i am itching to get my 99gs 400 to go faster. I have a greddy exhaust and srt intake & ecu...i know about the tc/lsd...what is that positraction thread? any count? i would really like to purchase a s/c is nitrous a effective way...and a safe way. what about the valve body work rmm does. any other industeries out there that can give a decent warrenty with work? thanks alot