Cat delete gains

[Supra Saiyan]

I been searching around and have found a few different things out there for numbers upon deletion of the cats... One thing I found said there would be like 3-5hp gains, another said up to 15 per cat..?

Listen, I don't want to take the chance and have a cop find out I deleted the cat. So I am interested in doing the method another member here used. They chiseled out the honey comb inside the cat to keep the visual effect for cops. They claimed their gains where noticeable as well..

Can anyone help confirm this, or give some incite to using that method..? Also, I passed my emission with my catz with flying colors. Will I not pass with this mod or a test pipe.. (I mean its pretty much a test pipe)

Please reference this link to see one post I took some info from..
http://www.toyota-supra.info/forums/...test-pipe.html