my friend if you are'nt sure what you doing send it out ,you will save yourself a lot of headaches , and if they are charging $400 for the harness that a good deal . I wont do it for less than $500 and thats if both harness have all the plugs intact. good luck
__________________
My shit still slow
618 whp 492 ft/lbs at 22 psi (Low Boost)on pump gas ,
stock block ,more power coming soon ,stay tuned 
Tuned by Alpha @ Induction Performance