That's my plan for this summer. Went and looked up the video too. Says 3" dp, 3" to the y, 2.5" y back, 16" glasspack with no muffs or res. I've gotta imagine it drones quite a bit. Could I get away with running 3" to the y since my glasspack is 3" in 3" out and then going down to 2.5" for the y?