I finally got rid of my crappy SSV and I'm currently waiting on my Crawford next week. Should I retune for this? I'm currently running a TN system too. The reason I ask is that the SSV really hurts or holds back more than stock (my opinion). So now that I'm going further to the good, will there be that much of a change to require a touch up tune? Thanks ahead of time.

 

no body can tell. you need to get the car dynoed after installing the crawford plenum and see if the afr changed.

 

That's cool. I have a wideband also. I'm probably going to dyno anyways, so why not tune a little.