well i got the exhaust finished. it turned out great....sounds just awsome. I dont know if there was a huge performance gain, It is a bit quicker but nothing that is going to set me back in the seat hard. Those 5.8's arnt real power houses anyways. I wouldnt expect you to feel any difference with just the headers and y-pipe because I know for a fact we felt no difference when we put our Bassani's on......I might be mistaken but it felt as if MAYBE it had a little quicker throttle response but that is it. Im sure if i was to put our truck on a dyno then it would show some gains but clearly not enough for me to REALLY notice in the seat, I was just aiming for an exhaust tone that I could really hear...and let me tell you, those 40's really scream

I am very pleased.