||We tune for the actual set ups, when you configure things differently than you buy the tune for, you will not achieve the results we tune for.
With 3 inch down pipes and mid pipes, the system will flow more air with a dual intake than with a single intake.
Our single pop chip will only work correctly with a true single intake system, switching the Selin to add will allow the single pop chip to work in a dual intake system, but it will be richer with that program as we did not tune it that way.
A more restricted system will allow the Selin on add to have similar results with either chip, but the more air the total system can move, the more every detail matters on a programing.
When you have a dual intake system, you want to run a dual pop chip as that is the only way we tune dual intake systems.