I had an Enthalpy tuned ROM and an XAT tuned power FC. Enthalpy's ROM's are pretty spot on - they have a tune for almost every setup. You'll have near perfect AFR's at WOT but may need some mild adjustment (which can be done via a FPR - no afc's needed) and your gas mileage during off-boost driving will be as awesome.
I had gotten one daughterboard for his ecu, but it didn't work on that specific one. I do have another board I could get, but I think he'd rather just get something plug in and done.
Jwt tend to give an extremely rich tune. At least the two cars that I've seen with them. I guess they want to keep it safe. I would go with an enthalpy tune though. :bigthumbu