What am I looking for to find out if (either?) of my ECU's has a chip in it? I'm gonna whip them out tonight and have a gander inside. I assume I won't be as lucky as to see a big orange sticker on something saying "I am an aftermarket chip"

 

Have you asked Lee at Fusion?

 

'turbo technics' apparently. would rather be sure though

 

Where the chip is in that picture (example only) there will be a large metal clip, secured from underneath the board which when removed, will reveal the chip as above.

Be very careful when handling the ECU board, they are sensitive to static.

Also, I'm pretty certain TT didn't do a chip for an RST (at least not their own) they used other methods to 'chip' RST's. Nearly all tuners will put a sticker on the chip - usually one that identifies the tuning co & possibly basic spec'.