running d&d 2.5 slip-ons w/o baffles on my 07 SG.just ordered a fuel pak cant see settings for that type of mufflers.called techs they told me to use settings of fp-0520.its good for basic slip-ons with baffles?i am not so sure of that.i want to run them w/o baffles.any suggestions?i run se ac with k&n filter.