Alright, so here it is. I have been doing constant research on the two. I have read forum after forum about the KB's and the Vortech's. Throughout my travels I have seen the same thing over and over... KB is the best for street and Vortech's are reliable and customer support is top notch. Thats all fine and dandie however I want to know how the vortech's perform... Are they good for street applications? What kind of benefits will I see from it? Can i Keep my 4.10's in? Will 4.10's help me get the RPM's needed to really get the boost from a vortech? And about what kind of RWHP and TQ can I expect from my car running 9lbs of boost from one.... (I know there is the calculator on a thread, i mean with my car and its current mods.) I just want to thank you all in advance because this is a really big thing to me. Oh and thanks to everyone so far who has helped me on this Forum! This is a god-send!