removing cat?

[AJMAG]

has anyone removed their cat from their hemi? any good or bad in doing so? i need a new one and reallllly dont feel like buying one at the moment

 

[KGBIGCOUNTRY]

Both of mine were taken off with the new setup. Honestly cant tell you either good or bad because it only has 125 miles on it. You will need nonfoulers though to adviod a code. My rear o2s are just turned off through the tune.

 

[AJMAG]

now next question, is it illegal? i dont care either way just wonderin lol

 

[KGBIGCOUNTRY]

Negitive Batman its considered illeagal for on road vechs that came with cats. Does NJ have the sniffer test beause it will fail that like a champ also.

Could get one of these or find a use set.
http://www.summitracing.com/parts/MPE-59956/
http://www.summitracing.com/parts/MPE-94109/

 

[AJMAG]

mmm i dont know i gotta check. thanks for the link i might just pick up a high flow

 

[KGBIGCOUNTRY]

Greg, Redtruck-VA might have some spares laying around shoot him a PM if its for your 03.

 

[AJMAG]

Greg, Redtruck-VA might have some spares laying around shoot him a PM if its for your 03.

will do thats a bunch man

 

[KGBIGCOUNTRY]

No problem hope ya get it striaght soon

 

[blackout11]

Lived in nj for 20 years you take off the cats you aint getting a sticker. They are strict on the emissions now they will fail you for anything thats not stock hid's FAIL tint FAIL a lanyard hanging from your mirror FAIL no cats FAIL and a FINE unless you can get a buddy with a shop that does testing to give you a sticker then dont do it.

 

[AJMAG]

Looks like im buying a cat haha my buddys shop does inspection but i dont wanna risk a fine. He'll pass my HIDS cause i can put my high beams on that have halogen bulbs. Thanks for the heads up

 

[truckin151]

I ran no cats before the cam went in and hated it, lost a lot of lowend so I stuck them back on

 

[KGBIGCOUNTRY]

Kinda wish I had a before and after with the cats and headers to see the change over. Ryan did you try no cats after the cam also or did they go on before the cam?

 

[blackout11]

N/p figure id pass on my mistakes from when i lived in jersey lol

 

[truckin151]

Kinda wish I had a before and after with the cats and headers to see the change over. Ryan did you try no cats after the cam also or did they go on before the cam?

They went on well before the cam. But I did not like how it sounded without them, way to raspy, it lost a noticeable difference in lowend (well lost isn't a good term, it moved any gain of the tq/hp further into the rpm range so it felt very sluggish to me), and the smell of unburnt hydrocarbons is nasty to me. I park in the garage and id come out a few hours later after getting home to work on something and couldn't breathe in there still. I wouldn't mind going catless again to see how the cam works with it like that but I like my setup.

 

[truckin151]

To tthe OP - the stock cats, last time I checked were very pricey, might look into the mag highflows I think they are cheaper than stock

 

[Stangshcky12]

My brother run high flows on his 07 mustang an I think it sounds much better then without.
He didn't notice any difference in power either