Installed Rinehart true duals and stage one air filter@ 500 miles and the Techlusion TFI-Box............. FI-1440ST. I have had popping and the engine light has come on and then off again. The dealer checked this and cleared it one time. I was also told this 1440ST will not work with this set up. Has anyone had this proplem?

 

from there site you might have the wrong tfi.tfi-1250st is for 07 big twin