I was asked to put up the parts I used for my experiment. Here it goes;

1- Used Justin's idea on how to get the 3.5" to 3" elbow and followed his cut instructions.
2- went to autozone(yes autozone) and bought the Spectre 3" Y and 2 3" 45's and 6 3" rubber sleeves.
3- Also bought two 2 pieces of 2-3/8" flex pipe(muffle section) from auto zone to squeeze around the radiator where I removed the plastic baffles.
4- ordered the 3" aluminum piping from CXRacing.com
- four 3" Elbows and two straight pieces
5- last i order the two K&N filters from the K&N website. They are like 4" round, 7" long
Something like that.

Not sure exactly what it cost but wasn't that bad if can't remember.

I cut the elbow, connected the y and went from there.

Once again, I am not positive it works better, Just what I am trying. If it hasn't given anyone else problems with the single, why not try double.