Cats......
Le Mans Master
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
An X-pipe will improve the sound over the stock H. With your abilities and equipment,you could splice in a generic X and save quite a bit of money. Cats are worth quite a bit of money at salvage yards,,they salvage the platinum and other precious metals. Here in the St.Louis area there has been a rash of cat thefts. You'd be throwing money away gutting them.Electric cut outs let you change/adjust volume at will,even with the cats. The cats are not very restrictive to begin with.
Drifting
Joined: Apr 2008
Posts: 1,316
Likes: 2
From: St. Louis Mo
An X-pipe will improve the sound over the stock H. With your abilities and equipment,you could splice in a generic X and save quite a bit of money. Cats are worth quite a bit of money at salvage yards,,they salvage the platinum and other precious metals. Here in the St.Louis area there has been a rash of cat thefts. You'd be throwing money away gutting them.Electric cut outs let you change/adjust volume at will,even with the cats. The cats are not very restrictive to begin with.
as far as sound goes....Gutted cats have drone, and don t sound as crisp as a catless H or X pipe.
Race Director
Joined: Jul 2008
Posts: 17,769
Likes: 3,697
From: The Sunshine State
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Thread Starter
Pro
Joined: Oct 2006
Posts: 609
Likes: 0
From: Kentucky
An X-pipe will improve the sound over the stock H. With your abilities and equipment,you could splice in a generic X and save quite a bit of money. Cats are worth quite a bit of money at salvage yards,,they salvage the platinum and other precious metals. Here in the St.Louis area there has been a rash of cat thefts. You'd be throwing money away gutting them.Electric cut outs let you change/adjust volume at will,even with the cats. The cats are not very restrictive to begin with.
So if i remove the cats and add a generic x-pipe. I will have a awesome, loud, mean sound with no drone?
Race Director
Joined: Feb 2008
Posts: 17,336
Likes: 8
From: Maker of Sharp Objects, AL - Roll Tide
St. Jude Donor '10-'11-'12-'13-'14-'15-'16-'17
St. Jude Knife Maker
First of all read this. It is my install of my cutouts.
http://forums.corvetteforum.com/c5-t...lled-pics.html
http://forums.corvetteforum.com/c5-t...lled-pics.html
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Race Director
Joined: Feb 2008
Posts: 17,336
Likes: 8
From: Maker of Sharp Objects, AL - Roll Tide
St. Jude Donor '10-'11-'12-'13-'14-'15-'16-'17
St. Jude Knife Maker
I then replaced the catalytic converter shells with the correct pipes. It sounds a whole lot better than it did with hollow canisters. I had drone that was out of this world, and a buzzing sound in certain RPM ranges that was just about to drive me up the wall. The replacement pipes give it a lot more uniform sound, and it really helped. I also added the two pieces of brace metal in between the pipes. I would suggest doing it the right way the first time. I had to put my car back up on jack stands and pull the midpipe again to do this replacement. Took me most of the day saturday. I put it back in Sunday.
Instructor
Joined: Oct 2008
Posts: 127
Likes: 0
From: coram new york
I have gutted out cats and have check engine light on.Code P0420 and P0430 at DTC .With check engine light on I can't get an inspection on my
99 FRC.Now I brought the car that way not knowing, now I have to purchase new cats at 900 bucks so be aware
99 FRC.Now I brought the car that way not knowing, now I have to purchase new cats at 900 bucks so be aware
Melting Slicks
Joined: May 2005
Posts: 3,394
Likes: 12
From: Leon Iowa
St. Jude Donor '06-'07-'08-'09
here is mine with no cats and an Xpipe with the bypass. well I have headers also.
http://www.youtube.com/watch?v=8cvkb...e=channel_page
http://www.youtube.com/watch?v=8cvkb...e=channel_page
Race Director
Joined: Feb 2008
Posts: 17,336
Likes: 8
From: Maker of Sharp Objects, AL - Roll Tide
St. Jude Donor '10-'11-'12-'13-'14-'15-'16-'17
St. Jude Knife Maker
The rear 02 sensors can be programmed out by a tuner, to get rid of the SES light.
They are only there to tell the ECM that the cats are working properly. The front 02 sensors actually tell the ECM to adjust fuel mixture based on what they read
They are only there to tell the ECM that the cats are working properly. The front 02 sensors actually tell the ECM to adjust fuel mixture based on what they read
Race Director
Joined: Sep 2004
Posts: 15,199
Likes: 1,007
From: BOOMER SOONER
What kind of performance gain (if any) can one expect with adding an X pipe? Or is it only sound?
I want headers but they will probably have to wait, i already have Borla Stingers and was thinking about the x pipe too, if its worth it.
I want headers but they will probably have to wait, i already have Borla Stingers and was thinking about the x pipe too, if its worth it.
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Ed
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Ed
Race Director
Joined: Sep 2004
Posts: 15,199
Likes: 1,007
From: BOOMER SOONER
