[Mr.Impreza]

Hey guys, just wondering if some of you with these setups could chime in in regards to smell.

I'm happy to have found some alternatives to do some more exhaust mods without having to make a loud car.
Please note, I'm not after max gains, I'm after the setup with least exhaust smell.

Which setup would cause less smell.

1) Catless Header with a aftermarket catted FP

2) Stock catted Header with a catless FP

3) Catless header with a stock catted FP

I searched and searched, but I never found out which cat is more effective at filtering and keeping the smell away. I know the header cat is more restrictive, so I'm assuming it does a better job at keeping the smell away. If I left it stock would that do a better job of keeping fumes down?

I kind of have a hard time believing that a aftermarket cat would smell the same as a stock catted cat in the header.
But anyways, would like to opinions and expertise!
Thanks!