Gut Cat?
Registered User
Joined: Jun 2003
Posts: 3,557
From: Carol Stream, Il.
No mas snake, you win. Just one last question as we part company. Which would flow better? A gutted cat or a pipe to take its place? I ask this as I go out to the garage to gut my muffler. Farewell my friend.
Registered User
Joined: Sep 2003
Posts: 376
From: VA
Thank you for continuing to proove my point. Make sure the muffler your gutting is around your neck when you stick the prybar through it though.
Registered User
Joined: Jun 2003
Posts: 3,557
From: Carol Stream, Il.
David, don't start, or the wraith of snake we be upon you. LT1 KING, the first three responses pretty much covered your question. Sorry if I helped sidetrack a honest question.
Registered User
Joined: Sep 2003
Posts: 1,327
From: Hartford, CT
Exactly what I was thinking. Snakeskinner is super passionate about gutting cats. Dont get on his bad side. 
Registered User
Joined: Oct 2003
Posts: 2,140
From: DOVER DE
Gut the cat. It sounds fine and it doesnt disrupt the flow. Flowmasters chambers have baffles and that drone you hear is your crap flowmaster muffler. It is not going to affect your torque, who have you been talking to anyway. Gutting that cat will give you a noticable gain, and you dont have to spend money for a straight pipe thats pointless.
There is no way that a gutted cat can not cause turbulance in the exhaust system. It's just an open can. At least the honney comb cat helps to direct air through the cat. If your doing it for performance, not installing a piece of straight pipe is just stupid. And consittering he still has stock manifolds it is doubtful if anything more than a slight gain will be felt.
Gotta be a red neck
Registered User
Joined: Aug 2005
Posts: 416
From: Tampa, FL
What a bunch of pussies. If you want a quiet car then get a V6. What are yall gonna do when you put headers or a cam in your car, bitch about the noise then. Gutting the cat barely makes a noise differance in the interior. It changes the tone, makes it a little raspier and a little louder, and gives you more power. I am confused as to why you think a straight pipe in place of a gutted cat will make such a differance in the noise level that it warrants spending $150-200 on parts and labor when its all said and done. Unless you planned on welding it yourself, then you save the $50-70 in labor. This is probably the dumbest conversation ive been apart of on this forum. If your cars are too loud then turn the radio up or get rid of them and get something a little quieter so you can take it on long road trips again.
when I put the long tubes and the ory it was quiet inside again.
when you take off the hollow chamber and put a straight pipe it becomes an exhaust not a redneck special. (your tone will drop 20-25db interior wise.)
That way you can hear the radio.
If you like being deaf so be it.
When your interior rattles and rearview shake at cruising speeds (2000-3000rpm)that down right sucks on a 1000+ mile trip.
I like my cars loud but not a deafening tone inside.
To each his own, I guess.
Last edited by sam pace; Feb 13, 2007 at 06:37 PM.
Registered User
Joined: Sep 2003
Posts: 376
From: VA
STFU! *****?
when I put the long tubes and the ory it was quiet inside again.
when you take off the hollow chamber and put a straight pipe it becomes an exhaust not a redneck special. (your tone will drop 20-25db interior wise.)
That way you can hear the radio.
If you like being deaf so be it.
When your interior rattles and rearview shake at cruising speeds (2000-3000rpm)that down right sucks on a 1000+ mile trip.
I like my cars loud but not a deafening tone inside.
To each his own, I guess.
when I put the long tubes and the ory it was quiet inside again.
when you take off the hollow chamber and put a straight pipe it becomes an exhaust not a redneck special. (your tone will drop 20-25db interior wise.)
That way you can hear the radio.
If you like being deaf so be it.
When your interior rattles and rearview shake at cruising speeds (2000-3000rpm)that down right sucks on a 1000+ mile trip.
I like my cars loud but not a deafening tone inside.
To each his own, I guess.
Registered User
Joined: Aug 2005
Posts: 416
From: Tampa, FL
Ok, you might be the first person ever to make a car quieter by putting longtube headers on it. Please tell me how you accomplished such a feat. And this 20-25 db that it dropped, did you take a reading of some sort, please tell me again how long tubes on LT1s make it that much quieter. Sounds to me like you need to get one of those electric cars that way you can hear your radio and it wont be too noisy for you on your 1000 + mile road trips.
Your car has 1 cat. mine had 2.
The one on the the drivers side plugged first so I gutted that one first. Then
about a month later the passenger plugged up, got gutted too.
Well with 2 hollow cans under my car this produced a REAL annoying frequency that when mated with my radio made every panel and the rearview mirror would rattle(mixed with heavy metal) I went to my friends shop and borrowed his db meter and it was about 25db higher inside because of this. After a while this made my ears hurt really bad The only way I could get rid of this sound was to take my t-tops off with the windows down.I had a choice sell my car(never) or do something about it.
I bought longtubes and i wrapped them. this made a huge difference because more sound went out the back and not inside my car plus more power.
If my car had only one like yours I would not have cared either.
Registered User
Joined: Jan 2007
Posts: 20
From: texas
i have the same set up, i took the the cat off put a straight pipe in,a little more louder but not annoying, ive got bbk headers too!, but you will lose a little torque down town, but you actually will gain at at mid range and especially at speeds upward of 80mph, on mine i run 2:73s, and the torque at high speed is great!, at 80mph my rpms are at 2k to 2100 rpms, but i have to agree with some of you, Z's are meant to be brutes!! animals!,so enjoy!
Registered User
Joined: Sep 2004
Posts: 43
From: delaware
I have a y cut out and when the cut out is open the car will get it good with the cut out closed it feels like a v6. If you have a clogged cat best thing i can tell you if gut the thing , and as for emissions when the car was stock with small upgrades it pasted Delaware emissions no problem. So the people that say running a gutted cat is bad for the air ..It must not be that bad if it can pass the tail Pipe test.
Administrator
Joined: Nov 1998
Posts: 71,086
From: Hell was full so they sent me to NJ
IT WILL NOT AFFECT YOUR O2 READINGS DICK. Single cat LT1 have NO REAR O2 sensors. And how do you know the car will sound like crap, what are you basing your statement on? Jesus you people are stupid. And Z Rated, like I said before you cant just up and swap pipes in place of the cats, you have to weld and reweld each time you take it off the ypipe. Also, whats a Vedor. If the cat is clogged you will know it, it is very obvious, no pipe will be needed to verify it. And once again, no one is giving facts to help the person who started this thread. Unless you count "Your car will probably sound like crap too" as good solid advice. Jackasses.
Administrator
Joined: Nov 1998
Posts: 71,086
From: Hell was full so they sent me to NJ
STFU! *****?
when I put the long tubes and the ory it was quiet inside again.
when you take off the hollow chamber and put a straight pipe it becomes an exhaust not a redneck special. (your tone will drop 20-25db interior wise.)
That way you can hear the radio.
If you like being deaf so be it.
When your interior rattles and rearview shake at cruising speeds (2000-3000rpm)that down right sucks on a 1000+ mile trip.
I like my cars loud but not a deafening tone inside.
To each his own, I guess.
when I put the long tubes and the ory it was quiet inside again.
when you take off the hollow chamber and put a straight pipe it becomes an exhaust not a redneck special. (your tone will drop 20-25db interior wise.)
That way you can hear the radio.
If you like being deaf so be it.
When your interior rattles and rearview shake at cruising speeds (2000-3000rpm)that down right sucks on a 1000+ mile trip.
I like my cars loud but not a deafening tone inside.
To each his own, I guess.