yea now that i think about it 3" duals would be a little exsesive so yea 2" true duals and they would be more for sound with power as a added benefit rather than main purpose, i dont live where emmisions is an issue so id happily go "cat-less" and what would i need to do with o2 sensors?
My last truck was an 83 chevy with over 400 hp. I had a single 3 1/2" from the "Y" and it was perfect. Everyone said to daul it and I lost 3/10s in the 1/4 mile so I put the old back on. 250 bucks out the window.