My history with the TWM (Borla) system has been good...especially when all the computer components were installed and adjusted... This was done by Bob Ream here in Glendale, AZ.
I would recommend you look into his system (
Imagine Injection - "Home of Quality High Performance Fuel Injection Systems") or
Bob@imagineinjection.com. Very nice system indeed.
Not much experience with the other systems but have heard some complaints on quality.
Regards,
Bill