Delete the cat???
Record Breaker
Joined: Jul 2006
Posts: 2,400
Likes: 1
From: Warren, NJ
Site Moderator
Joined: Jan 2008
Posts: 8,374
Likes: 28
From: Sioux Falls, SD
That depends on your definition of "sounds better". As already stated before, and if you ask Neon (maybe he will pop in here to give us his two cents eventually), he will vouch for this: gutting the cat makes your exhaust a bit (or more) louder, but it also drones to no end. A Super 44 drones enough (trust me, I have it). It doesn't bother me at all as it is now (with a high-flow cat), but if it did it any more than it does currently, it probably would, and I'd have to change it.
If you are going just for straight out loud noise (like ricers do), and don't care about a fine if a copy ever catches you, and your state doesn't do e-testing, I guess you could go for it. Its your truck, do what you want. But my vote is against it. (Also see my post in the "True Duals" thread posted a few minutes ago.)
My two cents.
If you are going just for straight out loud noise (like ricers do), and don't care about a fine if a copy ever catches you, and your state doesn't do e-testing, I guess you could go for it. Its your truck, do what you want. But my vote is against it. (Also see my post in the "True Duals" thread posted a few minutes ago.)
My two cents.
Rookie
Joined: Feb 2009
Posts: 55
Likes: 0
From: south east michigan
i do not have a cat, i forgot exactly what it is, but our 02 sensors for what ever reason dont pick up the cat delete, or at least mine does not. I just put the 02 sensors roughly about where they go, and i haven't had any problems with them yet (its been probally 1 1/2 years now). But i dont have hearders, i just have 2 1/2 inch true duals with no cats and 2 flowmaster 40s, it sounds good by the way, i think your truck will sound real good with that set up, but it wil be super loud with those headers.
Record Breaker
Joined: Oct 2007
Posts: 1,031
Likes: 0
From: Vermont
I replaced my cat with a section of pipe last year, ended absolutely hating it. The
performance difference between a hi flow cat and no cat at all isn't even noticed. It does
however make the exhaust loud to the point of annoyance. I had no cat and a 14''
magnaflow on mine which cause me to raise my voice to my passenger when the windows
were open.
performance difference between a hi flow cat and no cat at all isn't even noticed. It does
however make the exhaust loud to the point of annoyance. I had no cat and a 14''
magnaflow on mine which cause me to raise my voice to my passenger when the windows
were open.
Registered User
Joined: Feb 2009
Posts: 49
Likes: 0
From: salem, nh
i do not have a cat, i forgot exactly what it is, but our 02 sensors for what ever reason dont pick up the cat delete, or at least mine does not. I just put the 02 sensors roughly about where they go, and i haven't had any problems with them yet (its been probally 1 1/2 years now). But i dont have hearders, i just have 2 1/2 inch true duals with no cats and 2 flowmaster 40s, it sounds good by the way, i think your truck will sound real good with that set up, but it wil be super loud with those headers.
The upstream 02 is feedback to the fueling tables. So in theory, omitting the converter should cause a CEL and code stored but shouldn't effect fueling.
-- Joe