WTB: performance chip

[DolceGirly]

hey guys ive been wanting to buy a performance chip for my car...whats the best kind to get? usually my boyfriend just takes care of all of my car stuff but we just broke up and ive never bought any car parts online before so i have like noooo idea what im doing...does anyone on here have any for sale? ive been looking at a new cadillac performance chip at this website but im not sure if its a good deal or not. has anyone ever shopped their before? or could someone recommend a good place for me to go to? thanks a ton!

Michelle