How hard is it to delete my rear cat's myself since a muffler shop won't do the job since it's illegal?

 

Cutting them out is real easy when you have the right blades. Took two good blades to cut mine out with a sawzall.

Re-installing custom pre-flanged pipes was tricky, left side was smooth & easy, but the right side was hard, took all of mine & my buds strength to pull the exhaust back enough to pop the pipe in.

 

lol darren idk why i just noticed this, but your tires are dirty and not shiny in that new sig of yours

 

Thats the dirt road affect, and I had no Hyper Dressing on them

 

 

Thanks Darren! What all would a need? Two 2.5" peice of pipe stretched at the end's to fit over the stock pipe?

 

well my 2004's cats were 12" long, and Autozone carried flanged pipe but it was 18", so we cut then down to size and added flanged adapters to fit them on and clamped it up.

 

Just wondering does cutting the rear cats off make your check engine light come on?? I had heard that the back two o2 sensors would catch that they were missing and make the truck start running rough. Of course i have a 98' so i don't know if there would be any difference with the newer trucks??

 

On 2004 - 2005 trucks with 4 cats, the CEL will not come on. The pre-cats are only monitored.

1997 - 2003 will set the CEL and it will need to be resolved by MIL eliminators on the rear sensors or clearing it with a custom tune.

 

Is there any way to put the cats back on the truck without welding?

 

I'm not sure. The reason I clamped mine in was because of that reason, incase I got caught and had like 1 week to return it to stock and get it checked out before I get fined, that is why I haven't scrapped them cats yet. If I had to put mine in again, what would happen is we would unclamp and cut the cat delete pipe out, fit the stock cats back up welded, and after everythings alright cut them back out and buy the pipe supplies again and re-peat it.

 

some people have had luck with the rear o2's not throwing a code on 97-03 F-150's they took off the rear cats and some have said they didnt get a code. i dont have any cats so i got o2 sims darren your set up looks good

 

Thank you.

 

sounds good to i was just going threw your Youtubes. haha ive been driving around all day open cut-outs i think ive set off like 10 car alarms so far today haha. i still dont understand why its illgeal to drive around like this...other wise i wouldnt have bought any mufflers lol.

 

Thanks again man. You never heard my old Silverado have you? True dualed Super 44s, http://www.youtube.com/watch?v=LUJkmQpVye8

Loudness, thats probably the reason you cant run open cause its too loud and people have too much fun with them