wow never heard of it i just knew that i didnt want to go with cushed piping becuase i know it doesnt flow worth a shiznit. but thanx for that idea i think ill be goin and doin that very soon. should i feel any difference at all. and aft that im getin a highflow cat boot legged way with a little bit of guts laying in the trash so i think that will help a lil too. i just cant believe that a gran am kept up wit me for 2 and the begening of third gear which really kinda ticks me off.