I decided I dont want the stacks on my truck anymore and I was thinking of going with a 4" pipe exiting in front of the rear wheel and I know someone had a kit but I do not remember who had it? I want to go to 5" pipe but this time it is going to be straight piped and I want to be able to easily add the 4" cat converter back in if necessary, they do not do smog tests here but I figured if for some reason I was pulled over and the officer did a visual inspection and oddly knew my truck needed a cat and told me to put one on I would put one back on for a week haha, well if any of you remember who makes a system like that I would be very appreciative. And if anyone wants a really nice 5" mitre stack system with custom aluminum box for the crossover we can discuss a price. Thanks much