That is what I thought!?!? I also thought the smell came from the cat when it was going bad. I have ran vehicles straight before and the only smell I got was engine. You guys remember that gas company commercial "Hey Jeremy, is that 93 octane your wearing?" Funny stuff.

 

Please keep it on. I just came across a site while I was looking to recycle my old cat and this came up. "Smog is a big problem in Canada and one which affects the health of all Canadians. In fact, in a recent report, the Ontario Medical Association (OMA) estimated that smog- related premature mortality accounts for approximately 5,800 deaths annually in Ontario. Across Canada, cars, trucks and buses are major sources of smog pollution, especially in densely populated urban areas. Smog-forming pollutants include nitrogen oxides, volatile organic compounds and fine particulate matter. A twelve year old vehicle produces 17 times more smog-forming emissions than a brand new 2007 vehicle."http://www.carheaven.ca/about/why.aspx. Yes this is Cdn. stat. but come on. I'm not trying to be "that guy" just thought since your wife is pregnant it might change your mind, set a good example for your young one. We all may sound like environmental lobbyists, but like was mentioned in one of the above posts you can get a cat for $60. Please at least do that and don't be offended when we're all just trying to do our part. Thanks.

 

I wasn't able to get in Friday so I went ahead and ordered one from Summit, should be here Monday. Nah man, not really offended by what is said, it is just how some people come off. See, you stated your opinion in a nice fashion, that was all I was getting aggravated about, you know, I appreciate your response and kindness. I know I am not superior to any here, so I try my best to respect everyone, and I believe if you decide to post, you should do the same.

Thanks

 

Definitaly keep it on! my exhaust sounds friggin awesome and i have one, then again i do have a 2.5" from headers all the way out the back. and its just better for emissions.

 

I feel you. And honestly... I would either ditch it, or get a high flow cat and up the pipe diameter by half an inch. When I was younger I took the cat off, beat all the honeycomb out of it and reinstalled it hollow. ha ha! What can I say... I save lives, not planets. (btw, I am still using a cat for all the earthfirsters)

 

emissions shmemmisions...

 

See that was my thoughts before I was bulldozed... lol!

 

Your going to come to our board and cop an attitude over a subject that is black and white around here???

Your question was answered, there is NO reason to remove it. I even gave you my experience with it... So if that is the attitude you are going to have why don't you go to the next forum...

 

yeah its all about the laws they work, there is a reason they are required.... keep them on, they help.. unless you dont want your kids to live in a healthier place.

 

These threads are soooo much fun.

Btw, the issue isn't black and white around here at all. It's just that the people that are against gutting the emissions are louder than the people for it.

Wel, that and the fact that the mods have threatened bans for saying you have done it too.

 

I know we have had out talks about it... but with the tread lightly participation of this board it is black and white, I have seen several threads closed for advocating removing a cat.....

 

hee hee. This is hilarious... it's 4X4 politics. We should go to war, it's the right thing to do for the future of our nation. No we need to do whats right for the economy and we should end the war. I agree... these posts are so much fun it's nauseating. But don't try to tell me that you guys are seriously that concerned about it because you could always ditch your lifted, locked, big tire having four wheel drives and buy a toyota prius. Oh yeah... and don't take your cat off because it actually does rob you of power.

much love to all... =P

 

imagine... banished from yota tech over an exhaust forum. lol! Not that I don't believe it but it's still kinda funny.

 

You know I never thought of it that way... Funny ☺☺☺☺!!

 

I have run w/out a cat.. there is NO power increase, in fact it felt like a power loss at the lower rpms, where I spend more time... been there, done that, and have the t-shirt. So I can say from experiance leave it on, thats my personal point of view for "tread lightly" and from a power perspective... both of which I have said is several other threads (some that are now locked).. .which is why we said search

 

Remove the muffler if you want, but run the cat.
A high flow cat will run you under $80

 

okay okay. jeeez. where's that little icon of a happy face beating a dead horse. Ladies and gentlemen... run your cats thank you and goodnight.

 

Occasionally I find a horse worth beating

 

Guys, the catalytic converter works. It makes a huge difference in what comes out your tail pipe. Keeping the larger picture in perspective is a good thing when your sport is often under fire from environmentalists. Typically they are off base, but if we start making a habit of removing our smog equipment, well, they won't be so off base anymore. Let's not empower them.

As for power, lowering your backpressure will increase the RPM at which your engine scavenges. Having just had a cat stolen, I can assure you my truck was gutless with out that back pressure. The intake is to restrictive to allow it to rev that high, the EGR function is usually reduced leading to more predetonation and corresponding retarding of timing/loss of performance, and most importantly, the engine itself likely won't hold together well enough to rev to say 6500+ RPM where it will might run efficiently with no back pressure. You actually CAN lose power by doing this depending on what else you have modified.

The engine is a system and while better breathing is good, one must look at the whole, not just one part for gains. A high flow cat and larger cat back exhaust have allowed my totally stock truck to hit red line with ease when it struggled before. It climbs almost all hills in 4th (auto) instead of 3rd. Good, found a big restriction which improved partial throttle performance, the true factor in drive-ability. I might do some minor intake modifications to attempt to seat-of-the-pants balance the system but that's about it. Having your exhaust work best where the intake does not is a great way to feel your money has been wasted.

Frank

 

just if you dont live in town and dont get inspected by local police every week than i would go no cat ,but ive heard alot of stuff about your muffler sounding nicer with the actual cat on,anyway just a thought..