how hard is it to use and tune. what kind of parameters can you adjust. would i need to get a wide band or could i use stock 02 sensor for street tune. i have apexi turbo time which gives a/f ratio , also an autometer a/f meter and an autometer EGT. i really dont want to spend another grand on top of the 4b. i'm constantly upgrading my car and need something that would allow me to tune the car with out going to the dyno shop every month. anyone has a 4b please give me some info and what you think of it.
thanks.

 

you need a wide band if you intend on doing accurate tuning. I'm looking at a FJO wideband myself. I think they go for about $800.

 

what's the cheapest wide band available? would you have this hooked up all the time or only during tunning since it's expensive to replace the sensor.