What can I do with the SMPI motor in my 2006 Dodge Caravan.If I put a low restriction exguast,air filter.Would I have to do something with the computer?

 

shouldn't have to, 98% percent of cars out there have some fuel to play with to get away with most basic mods, even some you can do some aggressive stuff & get away with a stock computer

my van i've done several airflow increasing mods to it, i know its an older van, but my A/F gauge always reads on the rich side of things when the loud pedal is on the floor, good enough for me


-greg