is it bad to cut off the rear two cats

Would it make a difference in performance

 

What I would think it would Lower your emissions, make it a tad louder, and not as bad of a sulfur smell.

 

maybe you can put smokestacks up that come through the bed.

 

If your exhaust smells like rotten eggs "sulfur" it's from a bad cat an by taking them out you would raise your emissions because your not burning off the excess garbage. You probobly won't notice any difference in performance unless you take both sets out an sim out the o2 sensors then you will have a raw smelling exhaust and more noise my friend has no cats, short tube headers 3" exhaust and a summit chambered muffler and it's loud as hell

 

Pretty sure it would make it louder...but it would make the emissions worse. The rotten egg smell would either go unchanged or get stronger (because the sulfer smell comes from the gas...not the cat) and the chemicals released thru the tailpipe would be un-catalyzed.

Concur with the emissions testing comment above too...

 

I meant raise your emissions. I dont know what I was doing when I typed that. And my exhaust only smells when I punch it.

Anyway once you have nothing to calm down the exhaust from the engine, It can get VERY loud. And it takes quite alot of work to make it sound good.

 

The rear cats or resonators flow very well from what I've read. If you was to add a whole new y-pipe then you might see some gains, but just cutting out and welding a piece of pipe in it's place would probably just make more noise.

 

Idk only time I've noticed a sulfur smell from a car it was when we where getting my friends rb25 powered 240sx going an it had a bad cat it wreaked of rotten eggs I guess if I stuck my face near my exaust I would notice what you guys are talking about but completly uncatted exhaust you can smell just standig near the vehicle. Since your in Cali I wouldn't bother as your going to fail emissions and it's a $5k fine if you get caught without them per cat my friend go pulled over In his 89 fox body and they checked for
cats and told him if he wanted he could wright him a
$20k fine bacause his car is suppose to have 4 cats

 

Not worth it, the gain is minimal and the headache isnt worth it. Had my cats deleted and It sounds like a weedwacker. I know there isnt too many options to make our trucks not sound like a typical v6 with any aftermarket exhaust but Im almost sure you will regret it then have to do as I did and spend 60 to get them deleted then spend 200 to replace it with a stock one from the boards that youre going to go nuts over trying to find. just my .02. if its sound youre looking for .. hack that muffler off. Thats what I did, its an acquired sound (sounds just like a muffler deleted ranger) but it costs nothing to mod obviously and cost ya 10 bucks to re weld a muffler back on if you dont like it.

not mine but you get the gist:
http://www.youtube.com/watch?v=VbgOcYiPtbM
http://www.youtube.com/watch#!v=9gSo7IPd644&feature=related

 

I would not do it since you are in Cali.

 

There are smog exempt areas up here in Nor-Cal, but bein your from So-Cal i wouldnt advise it. Couse if you get cought your screwed

 

Yup- That's called authority. They have it to enforce laws.....Laws that should be followed if you don't want them to legally confiscate your truck.

 

Thanks for the help everyone

 

back at ya...

 

Do not do it unless you need the money from all the platinum inside.

 

i love mine. It is extremely loud.

I have both rear cats removed, no muffler, and a 3 inch pipe dumped in frot of the passenger rear tire.

 

good, they should make you walk home if you do that.

 

Yea but just because they take your truck doesn't do any good there are tons of states that don't do emissions testing or care if your truck is a smog machine Cali may have strict laws but what about the others, polution doesn't end at the border