Deleted Rear Cat's
MMNC (SS)(Ret)
Joined: Mar 2004
Posts: 11,606
Likes: 149
From: SE Georgia
but yeah, no gains, and most likely a TQ loss when you pull your cats on the F-150
Senior User
Joined: Oct 2007
Posts: 111
Likes: 0
but it sounds better without them... i pulled the rear two as well.. can't believe cops would actually enforce laws like that... not really an issue in canada that i know of... i'm sure it's illegal, but i've pulled cats on every V8 i've ever owned. definitely not the most environmentally friendly thing i could do, but anyone driving a truck that gets 15-18 mpg probably shouldn't be preaching about being environmentally friendly in my opinion
Senior User
Joined: Jun 2007
Posts: 104
Likes: 1
If you want to be "legal" then don't install anything after market! An after market intake is illegal. By the letter of the law anything not factory is illega! Or OEM I should say. CB antenna is illegal. It's just what you choose to do.
Elder User
Joined: Apr 2007
Posts: 722
Likes: 3
From: eastern shore Md.
Not in Virginia
20 miles over the limit gets you an automatic $2500 bill and then some. Of course Va. doesn't consider itself a state.
Senior User
Joined: Aug 2008
Posts: 298
Likes: 0
From: Vicksburg, MS
There are compleete exhaust systems from Dynatech for the '04-05's (maybe later). They have them for 2 and 4WD's if you have the bucks. They have them with or without the cats. Offroad w/o cats.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Postmaster
Joined: Oct 2005
Posts: 3,034
Likes: 1
From: NJ
Did you remove them yourself or did a shop do it? They can get in trouble as well as you, but it is your truck so feel free to do what you want. The fines are outrageous, but I've never personally met anyone who got in trouble for it. States that don't have emissions are probably more lax on checking this stuff. Here in NJ they will check under the vehicle for cats when you go to inspection. I don't see the point of removing the cats just to make your truck louder. I've done some nice exhaust systems with the stock cats on trucks and they sound perfectly fine with the cats. I get a lot of people asking me to remove the cats on their vehicles. It is not worth the risk IMO.
Postmaster
Joined: Sep 2002
Posts: 3,077
Likes: 1
From: None of your business
Mike
Senior User
Joined: Jun 2007
Posts: 104
Likes: 1
We are not talking about "off road". I don't know about your state but it is all illegal here in PA. Not that you will ever get a ticket for it. I had a cop stop me in a 79 CJ7 with duel exhaust and glass packs and no cats. He just wanted to make sure it had mufflers on it. By state inspection laws anything not OEM is not legal. No one will ever bother you for most things, but it is illegal.
Postmaster
Joined: Oct 2005
Posts: 3,034
Likes: 1
From: NJ
So based on that you need to have all your work done at the dealer or have a shop install only oem parts, not aftermarket?
Postmaster
Joined: Sep 2002
Posts: 3,077
Likes: 1
From: None of your business
We are not talking about "off road". I don't know about your state but it is all illegal here in PA. Not that you will ever get a ticket for it. I had a cop stop me in a 79 CJ7 with duel exhaust and glass packs and no cats. He just wanted to make sure it had mufflers on it. By state inspection laws anything not OEM is not legal. No one will ever bother you for most things, but it is illegal.
Now as far as cats go, usually it is illegal to modify them, it's illegal to totally remove them but the chances of getting caught are fairly slim. With a stock engine or even one moderately modded, it's not going to make much difference between stock or gone besides sound.
I've bought vehicles without cats (94 F150) and one in with no effect on performance. My 2000's cats got damaged by coolant and I replaced all 4 with two high flows and the performance vs pre damaged stock cats is the same but with more sound.
I could have just taken them off, but I'll spend $150 and some time welding to emit less emissions.
Mike
Senior User
Joined: Jun 2007
Posts: 104
Likes: 1
I did my research and I am wrong. I haven't checked the laws in about 8 years . The way they are worded now if after market parts meet orginal standards for that car it is legal. The wording has been changed over the years. Sorry guys.