We've been upgrading eproms now for over 18 years Many members on TT.net, 300zxclub, and Nico have our chip. The stage III chip dynoed at 400rwhp and a fully built Z engine with 1000cc injectors at 840rwhp
Eproms only shipped $60 ECU socketing $60 plus shipping Add paypal fees
We're also one of the oldest Nistune dealers in the US