I ordered a chip from a reputable vendor / tuner from this site who talked me into buying deatchwerks 550 by telling me they were the same as nismo at a much cheaper price and that they had spent extensive time in producing the eprom for them . After reading numerous posts and realizing I had the old deatchwerks injectors and was in the middle of an expensive build , I decided to go with the nismo 740 and have some peace of mind . To make matters worse about two months before I found this site I had a nissan mechanic recommend that I get venom injectors ( cheaper then oem ). Before I could install them I found this site and became aware of the venom reputation and kicked my self in the ass when the vendor for the eprom I wanted told me that venom was shit and he wouldnt use them . Thats when he recommended the deatchwerks and I got shafted again .
Long story short : buy nismo and youll save lots of time and money in the long run !