ECU Upgrades

is it best to wait until you have done most of your mods to your car before you get a new ECU? Don't they reprogram it for the mods you have done? I have looked at the Technosquare site and Iknow there are certain things they do automatically (ie. rev limiter, governor removal, fuel mapping, etc.) If I bought one for my car with just exhaust work done and Joe Nissan bought one for his car with exhaust, headers, y-pipe, intake, cams & more, do we get the same product or is Joe Nissan's modified to suit his needs?

...Don't they reprogram ...

batt off 30 min =ECU reset

OK you lost me. If I get the ECU reprogrammed and the battery is disconnected for 30 minutes is is reset to factory default. Something doesn't sound right there.

OK you lost me. ...

I referred to Nissan stock ECU, cannot be reprorammed. I dont know about the JWT etc...

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actually what JWT does is reprogram ecus... you send them your ecu and they reprogram and send it back within a week or so..

with regards to mods, i think the main thing they do is change the air/fuel mixture so if u have intake/exhaust/y then there might be more adjustment compared to someone with just intake.