Finally, getting my exhaust to complete my stage 1. Was going to go with Bub 7's but due to factory issues, none available for pssibly 1-3 months (something to do with defective chrome batch). I have a set of Rush 3 1/2" slash downs with 2" baffle on the way. Great sound and reviews. Question, and I am sure the answer is "No adjustment needed" but gots to ask anyways as I am not a confident wrencher yet :newsmile04:. I have the Dobeck Gen 3 and the Zipper Max Flow A/C already on. My understanding is the Gen3 comes pre-set for the Stage 1 set up...being that I am going to run 2" baffles instead of 1.75" baffles, will that make a difference? I should be good at the current default settings still, correct? Thanks so much. by the way, I LOVE the Gen3 and YOU guys are right for making that this sites #1 recommended tuner.