XtremeHKS

All you people out there that have gutted your cats but dont have a y-pipe but have gutted your cats how do your maximas sound? I am kinda of worried about if it will sound like a honda or something

Daniel B. Martin

Don't gut the Cat. Doing that is bad for the environment. It is illegal. The performance gain is negligible.

NickStam

iTrader: (3)

Bad Idea

sx7r

iTrader: (15)

i'd never do something like that

Gotrice4

Don't do it, get a random tech cat if you want more performance, but either way performance is neglible...

maximasrule

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it is kinda dumb cause (not that i care) but it is hard on the enviroment (sorta) and you dont get any hp outa it so its pointless. get forced enduction instead.....
dan

Cumalot

iTrader: (8)

I agree, don't do it! Plus, I think it will give you that really bad smell. I got the RT cat oppose to gutting the cat or straight pipe. I noticed a slight improvement in power with the RT cat. I think it's worth it, costed me less than $200.

MardiGrasMax

iTrader: (14)

Naaaaa Aaahhhh, not you!! Why would any body want to do that.

Smell is neglagable during cold start up, once your warm'd up its gone.

I bet that a 4th gen in propper running order with out a cat will produce less emissions than a one of those freakin maga SUV's, simply because of gas milage. So IMHO it aint that freakin big of a deal.

My oak tree needs some hugging if any one is interested?

ereet

If the performance from gutting the cat is negligible, is there a decent performance gain from replacing it with a straight pipe? I was told that it was a big difference. Other than being illegal, and making my car a smog-mobile, what're the gains like?

XtremeHKS

Another thing I forgot to mention is well doesen't NOS ruin your cats? I just installed my Nitrous last night. And i heard that NOS will mess up your cats

I30CeFiRo

Don't do it. My friend did that before and he didn't feel any performance gain and it made the exhaust smell really really bad.

Synki

Well..i have been running on my OEM cat. I lost that damn R/T cat... yes i lost it..have no idea where it went but it hasnt fouled out my cat yet. If you have a proper workin NOS system w/ a small shot you shouldnt foul it out. A test pipe would be the best idea. $40-60 for a test pipe.. just gotta find someone who will make it for yah.

Jon91SE

Hollowing out my cat gave my exhaust a not so "clean" sound, smells like a 80's dodge and was a little louder, and revs a tad quicker........ i will be getting a free flow cat soon instead.....

MardiGrasMax

iTrader: (14)

If your cheep like me go with no cat. I'm sure you'll get at least the same results as you would with a RT cat, but for alot less money.

But if your car is just a show mobile and the smell of power bothers you dont do it. I prefer go over show. I like the smell, you should haved smelled it when I ran a little race gas in it, DAM IT SMELL'D SWEET!!!

After all, its a freakin car and your suping it up, WTF is a little smelly exhaust? Ever been to a race track

Tell ya what dont get the RT either just get some Altezza's, their worth way more HP anyway

Jung918

I did it and had to get a smog test and i just wasted money on it... also it makes a poping sound when you let go of the gas... it's all up to you... the acceleration seemed slower... rmp seemed a little lower on the high way...

dmbmaxima2k2

iTrader: (1)

i would never do that either. hehe. getting a rt cat is the BIGGEST waste of money ever. the honeycomb inside the cat is what is restrictive. rip that sucker out and gutt the hell out of it. i have y-pipe, gutted cat, and stock catback and it sound mean. not honda at all. it smells though, i can't smell it but people behind me can. it's a tailgating deterant.

sx7r

iTrader: (15)

YES, i hug trees.


nitrous won't foul your cat unless you are running real rich. but the thing to watch out for is that if you are going to run a something bigger than a 60 or 70 shot, you might blow the bricks out of the cat because there is so much back pressure when you are on the bottle. but if that happens, it saves you the trouble of gutting it yourself. so spray away.

dmbmaxima2k2

iTrader: (1)

my cat would be gone by now anyway. I'm running rich right now at my 60 shot but i've ordered the different jets and the 100shot jets and stuff. hopefully i can get my 100shot fp to around the 85 it should be i'll have to experiment with the jets. And i have some trees that need some loving in my yard. i'm so mean to them. any takers.....

AKAICEBERG

Hey I30Cefiro, Damn buddy your car is like a ****in wet dream. The car just looks sweet. I especially like the rims, but I'm biased cuz I have the same ones on my ride except there 17" and silver. Keep up the good work.

Later,
Kevin