What CAT to buy? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

PHOENIX · 11-12-2002, 01:27 PM

Im going to start buyig the components of my exhuast. First thing I will buy will probly be the headers. I will most likely have them Jet Hot coated. Then muffler and cat. Then I will go down to a local muffler shop and have them install everything from the Y pipe back. Unless I can find a kit, then I will do it myself.

How big is the output on the Y pipe that comes with these headers? Is it 3"?

If so I want to run a 3" pipe from the Y to the cat then to muffler. Muffler to split the 3" to two 2-1/2"'s and have them exit behind rear tire on each side.

Anyone make a kit like that?

What CAT should I buy? I want a good high flow CAT, that will still work well for emissions.

LOHRTBT · 11-12-2002, 01:52 PM

ONE THAT GOES "MEOW" HAHAH

bigblock73 · 11-12-2002, 02:32 PM

get a cat that won't poop on the carpet...been thru that and it wasn't any fun!!!

PHOENIX · 11-12-2002, 03:35 PM

Smarta$$es

Catco, Headman, ?

3" in and 3" out

ocbaud · 11-12-2002, 05:42 PM

i have a set of cats i would give you, the are only 2" piping though

PHOENIX · 11-12-2002, 06:02 PM

Ocbaud thats very nice of you, but I really want to go with a single 3". If I was to go to true duals then I would go to 2-1/2's. That of course would cost more money.

ocbaud · 11-12-2002, 06:09 PM

Quote:

Originally posted by PHOENIX
Ocbaud thats very nice of you, but I really want to go with a single 3". If I was to go to true duals then I would go to 2-1/2's. That of course would cost more money.

its cool, i have no use for my old exhaust anyhow. i have 1 manifold, and all the pipes, mufflers, and the tips

**swervin ervin** · 11-12-2002, 06:24 PM

Eddie,

not but one cat as far as I concerned. I have Random Technology on my truck. They are expensive, but you get what you pay for. These cats are the best flowing on the market.

The Edelbrock TES headers have the y-pipe ending in a 3" outlet. Then it has an adapter which reduces it down to 2.25". Leave the adapter off and go straight from the 3" outlet to the cat with a short piece of pipe.

LOHRTBT · 11-12-2002, 06:26 PM

Just messin with you since I dont have no stinkin cats!! hahaaha

PHOENIX · 11-12-2002, 06:39 PM

I know Dave.

Thanks Mike. Every thought about adding that to your signature? "You get what you pay for" Its true though atleast most of the time.

Hey Mike how much might I expect to pay for a CAT like THAT?

<--------- BAMM one freakin hundred!!!! I have to go home now, work is over

Im gonna try to get an avatard tomorrow.

**swervin ervin** · 11-12-2002, 08:16 PM

Eddie,

mine was $211.00.

But, this is the best cat money can buy.

79BIG10 · 11-12-2002, 08:39 PM

I've also heard of dual inlet outlet cats. Not sure on brand but that may be a cheaper route.

Tom · 11-13-2002, 12:40 PM

I use catco's on my 79. Radom techs are better, but the catcos were only $95 a piece

THE best flowing cat out there, even better then radoms, is actually chevys cat for a 98 tahoe. 400 somthing CFM of flow. I read a flow test done on some cats once. Tahoe was best, then came random, a dodge viper cat, a corvette cat, etc. Unfortunatly they didnt test catco.

PHOENIX · 11-13-2002, 12:47 PM

How big is the exhuast on the 98 Tahoe? Might be able to find a cat somewhere.

Good lord $211
or
$95

I guess I will have to think about this one. Its not like I have a race engine or anything so I know I dont absolutly need the best flowing, but hey I want to put a nice exhuast on here that is going to last. I dont know. Anyone of them have a warranty? What can someone say to talk me into one of the other?

**swervin ervin** · 11-13-2002, 07:23 PM

All I can tell you is, it's a matter of choice. Your's in the end. I done a lot of reading on cats before I bought mine. I wanted the best and best flowing because of the way I have to run my exhaust. With the y-pipe going into one, I felt I needed the Randon Technology. They have done testing on these and when added to Corvettes, they never hurt HP, and actually increased it in some instances. Hard to believe though.

As I have said, you get what you pay for.

So, I guess it's up to you. A lot of help I know.

Tom · 11-13-2002, 07:26 PM

for reals B. Its up to you. If you have the cash, go with random tech cat[s] If you just need a quality high flow cat that might not offer the best performance but dosnet take a whole lota cash catcos might be the way to go. I think you'll be happy either way.

PHOENIX · 11-14-2002, 01:03 PM

I guess its just gonna come down to how much cash I have when I buy the cat. If I can afford the Random then Ill get it, but if Im short on cash then Ill get the catco.

11-12-2002, 01:27 PM	#1
PHOENIX Registered User Join Date: Oct 2002 Location: Phoenix, Arizona Posts: 4,703	What CAT to buy? Im going to start buyig the components of my exhuast. First thing I will buy will probly be the headers. I will most likely have them Jet Hot coated. Then muffler and cat. Then I will go down to a local muffler shop and have them install everything from the Y pipe back. Unless I can find a kit, then I will do it myself. How big is the output on the Y pipe that comes with these headers? Is it 3"? If so I want to run a 3" pipe from the Y to the cat then to muffler. Muffler to split the 3" to two 2-1/2"'s and have them exit behind rear tire on each side. Anyone make a kit like that? What CAT should I buy? I want a good high flow CAT, that will still work well for emissions. __________________ * AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION *

11-12-2002, 01:52 PM	#2
LOHRTBT BeWarE tHe eViL CrAnkTOe! Join Date: Oct 2002 Location: Yukon, OK Posts: 3,605	ONE THAT GOES "MEOW" HAHAH __________________ ~Dave~ You can call me Mike, Mike Oxlong - 1986 Chevy SWB - Stock for now - *1986 Chevy Custom SWB* *Stolen 6/26/05* - 1985 Chevy SWB SOLD - 1999 T/A Some mods www.cardomain.com/id/ramairdave AIM Screenname - Jester84

11-12-2002, 03:35 PM	#4
PHOENIX Registered User Join Date: Oct 2002 Location: Phoenix, Arizona Posts: 4,703	Smarta$$es Catco, Headman, ? 3" in and 3" out __________________ * AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION *

11-12-2002, 06:02 PM	#6
PHOENIX Registered User Join Date: Oct 2002 Location: Phoenix, Arizona Posts: 4,703	Ocbaud thats very nice of you, but I really want to go with a single 3". If I was to go to true duals then I would go to 2-1/2's. That of course would cost more money. __________________ * AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION *

11-12-2002, 06:24 PM	#8
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	Eddie, not but one cat as far as I concerned. I have Random Technology on my truck. They are expensive, but you get what you pay for. These cats are the best flowing on the market. The Edelbrock TES headers have the y-pipe ending in a 3" outlet. Then it has an adapter which reduces it down to 2.25". Leave the adapter off and go straight from the 3" outlet to the cat with a short piece of pipe. __________________ Mike 1985 Chevy C-10

11-12-2002, 02:32 PM	#3
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,824	get a cat that won't poop on the carpet...been thru that and it wasn't any fun!!!

11-12-2002, 05:42 PM	#5
ocbaud Garage Queen Material Join Date: Oct 2002 Location: USA Posts: 4,129	i have a set of cats i would give you, the are only 2" piping though

11-12-2002, 06:26 PM	#9
LOHRTBT BeWarE tHe eViL CrAnkTOe! Join Date: Oct 2002 Location: Yukon, OK Posts: 3,605	Just messin with you since I dont have no stinkin cats!! hahaaha __________________ ~Dave~ You can call me Mike, Mike Oxlong - 1986 Chevy SWB - Stock for now - *1986 Chevy Custom SWB* *Stolen 6/26/05* - 1985 Chevy SWB SOLD - 1999 T/A Some mods www.cardomain.com/id/ramairdave AIM Screenname - Jester84

11-12-2002, 06:39 PM	#10
PHOENIX Registered User Join Date: Oct 2002 Location: Phoenix, Arizona Posts: 4,703	I know Dave. Thanks Mike. Every thought about adding that to your signature? "You get what you pay for" Its true though atleast most of the time. Hey Mike how much might I expect to pay for a CAT like THAT? <--------- BAMM one freakin hundred!!!! I have to go home now, work is over Im gonna try to get an avatard tomorrow. __________________ * AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION *

11-12-2002, 08:16 PM	#11
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	Eddie, mine was $211.00. But, this is the best cat money can buy.

11-12-2002, 08:39 PM	#12
79BIG10 I'm back with 2nd truck! Join Date: Feb 2002 Location: Texas Posts: 3,774	I've also heard of dual inlet outlet cats. Not sure on brand but that may be a cheaper route. __________________ 1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson

11-13-2002, 12:40 PM	#13
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,748	I use catco's on my 79. Radom techs are better, but the catcos were only $95 a piece THE best flowing cat out there, even better then radoms, is actually chevys cat for a 98 tahoe. 400 somthing CFM of flow. I read a flow test done on some cats once. Tahoe was best, then came random, a dodge viper cat, a corvette cat, etc. Unfortunatly they didnt test catco. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.

11-13-2002, 12:47 PM	#14
PHOENIX Registered User Join Date: Oct 2002 Location: Phoenix, Arizona Posts: 4,703	How big is the exhuast on the 98 Tahoe? Might be able to find a cat somewhere. Good lord $211 or $95 I guess I will have to think about this one. Its not like I have a race engine or anything so I know I dont absolutly need the best flowing, but hey I want to put a nice exhuast on here that is going to last. I dont know. Anyone of them have a warranty? What can someone say to talk me into one of the other? __________________ * AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION *

11-13-2002, 07:23 PM	#15
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	All I can tell you is, it's a matter of choice. Your's in the end. I done a lot of reading on cats before I bought mine. I wanted the best and best flowing because of the way I have to run my exhaust. With the y-pipe going into one, I felt I needed the Randon Technology. They have done testing on these and when added to Corvettes, they never hurt HP, and actually increased it in some instances. Hard to believe though. As I have said, you get what you pay for. So, I guess it's up to you. A lot of help I know.

11-13-2002, 07:26 PM	#16
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,748	for reals B. Its up to you. If you have the cash, go with random tech cat[s] If you just need a quality high flow cat that might not offer the best performance but dosnet take a whole lota cash catcos might be the way to go. I think you'll be happy either way. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.



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11-14-2002, 01:03 PM	#17
PHOENIX Registered User Join Date: Oct 2002 Location: Phoenix, Arizona Posts: 4,703	I guess its just gonna come down to how much cash I have when I buy the cat. If I can afford the Random then Ill get it, but if Im short on cash then Ill get the catco. __________________ * AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION *

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