Just my $0.02 but I think that wouldn't look very good. I'm just not a fan of the faux one-into-two look. Those are $52 each, which means $104 for the pair, plus about $75 to weld them on. I would suggest trying to find a used 4.6is or 4.4 exhaust, or buying the 4.6is style tips.

An example....

__________________