is there resonators i have that i can cut out and weld in straight pipe like my friend did on his 05? he said they are right behind each side of cats. his sounds mean since he did it. all four cats still there

 

You can cut off the back two cats and run it, I just did it this week.

 

what about emissions?

 

Resonators just muffle sound they do not have any thing in there to help with emmissons and the the frist 2 cats do enogh cleaning i think your truck should pass. i know everyone on here replaces the stock 4 with only 2 High flows so i think the stock 2 should be plenty... i dont know this for a fact but i think your ok.

 

Chop them rears out. I'm planning to soon

You can get your supplies at autozone.

 

so do i cut out resonators or chop out rear 2 cats? is there sensors on the rear cats? how u think super 44 muffler with this would sound?
what about power/torque?

 

there arent reso's on f150's we have 4 cats...cut the 2 back cats and youll be ok nice and loud and still be legal yes a super 44 would be great on that truck

 

so the two bigger cats correct? i had a look underneath. every place around gives me crap when i want to do something with my cats

 

yea thats what joshmac said he did with no CEL light...and yea just about all exhaust shops are gonna give you crap with any kind of converter work its against they law the exhaust guy can go to jail with huge fines and lose his job...they dont want that...so thats why many people wont do that work...glad my exhaust guy will but yea if you just cut those 2 big cats off youll be alright and if you put a super 44 on there it will sound loud and mean

havent already go check out my exhaust i have hi flow cats...people say its the same as the 2 front cats

 

i already have syper44

 

well alright then hack those 2 back cats off and post me a vid!!! haha

 

ive got tru duals hi flows and 10 series flowmaster if you wanna check it out and kinda get a idea...hi flows are kinda the same as hackin the rear cats off