i have a rrfpr and it sucks balls… dont ever go that way! it will be out and then i will try the vafc hack because i am in the same place with obd2. i will just use the bigger injectors and cut them down w/ the vafc. i know its not the best idea because it does nothing for timing but it is a step in the right direction. i feel that its too much work to do an obd1 conversion and have to remove it every year. with the afc hack you can leave it and still pass. the rrfpr just makes you run rich all the time and i dont like its response time plus you cant tune down bigger injectors with it.