I have recently made some upgrades to my baby and i am in need of some help. My baby is a daily rider for my 44 mile commute everyday to and from work. I am getting her to the dyno but not until next week. I have added a pc5 voodoo 4-2-1 full exhaust and a KN air filter. Checked the dynojet website and no map for my application. Can anyone recommend a good starting point so I don't lose too much of my much needed gas milage. I'm not saying that I still expect to get 44mpg anymore but I would like to stay above 38 if possible. Thanks in advance

if your gonna spend the money for a dyno session and get it tuned then you might as well spend the money on a halfway decent exhaust. Honestly you were better off cutting you factory exhaust off at the midpipe and clamping on an exhaust tip from autozone.... that would've cost you $50 and you would get the same sound and HP results 
Best bet is to try and grab up a cheap exhaust can off ebay if your gonna try a cut n splice job. Normally I wouldn't recommend it but really it's not like your gonna decrease the HP or performance from a voodoo exhaust 