Does anyone make a 3" catback - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1LoC10 · 04-04-2006, 05:36 PM

Does anyone make a 3" catback for a 67-72 Shortbed? I cant find any custom exhaust shops around me to make one

cdowns · 04-04-2006, 06:33 PM

never seen a 67-72 with a catalitac converter so therefore have never seen or heard of a catback of any size to fit these trucks

Chevrolet4x4s · 04-04-2006, 06:41 PM

Order some exhaust tubing from sumit racing 3''x4foot exhaust tubing something like $12.00
Shane

Longhorn Man · 04-04-2006, 06:46 PM

With the terminology you are using you won't find anything.
A cat back or after cat system is for later model vehicles that are equipped with a catilitic converter. These systems are sold as kits to make it easier to prove legality as far as emissions controls. Some places the cops can give you a ticket if they think you violated smog laws and then you have to prove yourself to the judge. A cat back system at least when they first started making them came with a card to keep in the glove box showing it's 50 state certified and therefor legal.

What you are looking for is a complete exhaust system.
Try calling your local 'regular' muffler shops you may be suprised.

1LoC10 · 04-04-2006, 06:48 PM

sorry im use to new trucks...lol, I meant exhaust system... i have tried local places and no one can do 3... just 2.25 or 2.5

1LoC10 · 04-04-2006, 06:51 PM

I was looking at this one with the the x pipe
http://www.lmctruck.com/icatalog/cb/0095.html
but was looking for a 3" if they made it

71SWBChevy · 04-04-2006, 07:10 PM

I think MagnaFlow just released a kit for these trucks, might not be 3 inch and it is only available in a rear side exit but it should be on their site under cat back even though there is no cat that is still the classification they use.

71SWBChevy · 04-04-2006, 07:13 PM

Well I found it on their website but apparently it only comes in 2.5 inch pipe and is a little pricy. Here is a link anyway
http://www.magnaflow.com/02product/s...e=Trucks&id=76

Also just as a side note on magnaflows homepage the truck and SUV catagory is represented by a SWEET 67!

68haywagon · 04-04-2006, 07:13 PM

Are you looking for 3" duals?? What are you running under the hood to require that?

Mike

1LoC10 · 04-04-2006, 08:41 PM

its just a 350....lol, a friend of mine has 3" on his 96 Camaro and I love the sound........but i guess with me having headers and no cats.. I could prob still be pleased with a 2.5

boraxman · 04-04-2006, 08:57 PM

Quote:

Originally Posted by 1LoC10

its just a 350....lol, a friend of mine has 3" on his 96 Camaro and I love the sound........but i guess with me having headers and no cats.. I could prob still be pleased with a 2.5

Yup, I think you would be happy w/ 2.5, H or X connecting them and free flowing mufflers.

Some muffler place should be able to do you a custom job.

72MARIO · 04-05-2006, 01:00 AM

I did 3" manderal on my truck. I bought the bends and cut the angles needed then but welded them system together. Alot of hours involvedbut thats the only way to get 3" that I know.

2.5 dual will be fine. The muffler and tail pipe will determin the sound for the most part. It should sound really nice anyways.

72MARIO · 04-05-2006, 01:02 AM

Did you notice the kit is stainless tube ? Thats why it $$$$$.

MACO · 04-05-2006, 01:02 AM

I ordered the Magnaflow stainless system for my truck. It cost me the same as a regular muffler shop exhaust. It isn't here yet so I doin't now how it fits or sounds.

68Stepbed · 04-05-2006, 01:09 PM

Quote:

Originally Posted by MACO

I ordered the Magnaflow stainless system for my truck. It cost me the same as a regular muffler shop exhaust. It isn't here yet so I doin't now how it fits or sounds.

You better post pics when you get it or we'll get you banned!

j/k I would like to see some pics when you get it on.

1LoC10 · 04-05-2006, 02:12 PM

yeah me too....and a sound clip if you have able

boundstaffpress · 04-05-2006, 02:26 PM

"H" or "X" pipe will give the even tone. I always liked the sound of dynomax super turbo mufflers. They are low and throaty without breaking the bank. They are even lifetime gauranteed for those of you who live in the salt banks of the midwest.

3" exhaust will not provide enough back pressure from what I've heard. 2.5" will be big enough to provide for lots of HP, and small enough to give ample backpressure.

*rage'nrat638* · 04-05-2006, 05:56 PM

heres my sound clip with my 6 cyl
below in my sig

MACO · 04-05-2006, 06:03 PM

When my exhaust arrives and I get it installed I will do my best to take some pictures of it and possibly a sound clip. Im not looking to get banned from the site!

**special-K** · 04-06-2006, 11:13 PM

Quote:

Originally Posted by boundstaffpress

"H" or "X" pipe will give the even tone. I always liked the sound of dynomax super turbo mufflers. They are low and throaty without breaking the bank. They are even lifetime gauranteed for those of you who live in the salt banks of the midwest.

3" exhaust will not provide enough back pressure from what I've heard. 2.5" will be big enough to provide for lots of HP, and small enough to give ample backpressure.

I have a custom 3" dual exhaust with the Super Turbos on my 6.2 Diesel Suburban 4wd.It sounds really cool.I`ll be mounting a`69 cab with a utility bed on that frame.It`s going to be one hella work truck.I drive the `Burb now and think how cool it`ll be to here a`69 K/30 Diesel going down the road sounding like that.

powell72 · 04-06-2006, 11:17 PM

Hey Mario, we would all love to see some pics of that exhaust system, it sounds like alot of work.

MandarinSixSeven · 04-07-2006, 12:03 AM

ya, I ordered up some mandrel 180 bends from summit and had a local shop cut/weld them up into a turbo-back system for my brick (volvo). I love the sound...even on the 4-cyl it sounds nice and deep

**special-K** · 04-07-2006, 08:37 AM

I`ve had a custom-bent dual system on my`90 Blazer since it was new.I put stainless Thrush hi-flow cats on it.It changed my view on cats.I`d put them on an old truck if I had to,someone gave me some,or I had that much extra money.

04-04-2006, 05:36 PM	#1
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Does anyone make a 3" catback Does anyone make a 3" catback for a 67-72 Shortbed? I cant find any custom exhaust shops around me to make one __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

04-04-2006, 06:33 PM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Does anyone make a 3" catback never seen a 67-72 with a catalitac converter so therefore have never seen or heard of a catback of any size to fit these trucks __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

04-04-2006, 06:41 PM	#3
Chevrolet4x4s Registered User Join Date: Nov 2005 Location: WV Posts: 227	Re: Does anyone make a 3" catback Order some exhaust tubing from sumit racing 3''x4foot exhaust tubing something like $12.00 Shane __________________ 1993 K1500 350 5 speed 1985 K10 Silverado Vortec 406 5 speed (in body shop) "I been drivin' this '85 pickup truck Them buddies of mine call it a bucket of rust She's a little beat up but she still runs like the wind Yeah, kinda like me I been banged and bruisedBeen around the block a time or two But I'm runnin' like new goin' places I never been No, I ain't broke I'm just broken in" 1963 Dodge Townwagon(its amazng what 30 years and zero miles will do to a vehicle ) Member#20327

04-04-2006, 06:46 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Does anyone make a 3" catback With the terminology you are using you won't find anything. A cat back or after cat system is for later model vehicles that are equipped with a catilitic converter. These systems are sold as kits to make it easier to prove legality as far as emissions controls. Some places the cops can give you a ticket if they think you violated smog laws and then you have to prove yourself to the judge. A cat back system at least when they first started making them came with a card to keep in the glove box showing it's 50 state certified and therefor legal. What you are looking for is a complete exhaust system. Try calling your local 'regular' muffler shops you may be suprised.

04-04-2006, 06:48 PM	#5
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: Does anyone make a 3" catback sorry im use to new trucks...lol, I meant exhaust system... i have tried local places and no one can do 3... just 2.25 or 2.5 __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

04-04-2006, 06:51 PM	#6
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: Does anyone make a 3" catback I was looking at this one with the the x pipe http://www.lmctruck.com/icatalog/cb/0095.html but was looking for a 3" if they made it __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

04-04-2006, 07:10 PM	#7
71SWBChevy Post Whore Join Date: Aug 2005 Location: Owensboro KY Posts: 11,905	Re: Does anyone make a 3" catback I think MagnaFlow just released a kit for these trucks, might not be 3 inch and it is only available in a rear side exit but it should be on their site under cat back even though there is no cat that is still the classification they use. __________________ Drew '71 Chevy 350/TH350 Hugger Orange Currently just a rolling frame, body work soon to follow!!! Check out my Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=212927 Daily Driver: 1997 Chevrolet S-10 with more gears than pistons

04-04-2006, 07:13 PM	#8
71SWBChevy Post Whore Join Date: Aug 2005 Location: Owensboro KY Posts: 11,905	Re: Does anyone make a 3" catback Well I found it on their website but apparently it only comes in 2.5 inch pipe and is a little pricy. Here is a link anyway http://www.magnaflow.com/02product/s...e=Trucks&id=76 Also just as a side note on magnaflows homepage the truck and SUV catagory is represented by a SWEET 67! __________________ Drew '71 Chevy 350/TH350 Hugger Orange Currently just a rolling frame, body work soon to follow!!! Check out my Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=212927 Daily Driver: 1997 Chevrolet S-10 with more gears than pistons

04-04-2006, 07:13 PM	#9
68haywagon I'm watching you! Join Date: Feb 2005 Location: Levittown, PA Posts: 1,822	Re: Does anyone make a 3" catback Are you looking for 3" duals?? What are you running under the hood to require that? Mike __________________ 2012 Chevrolet Silverado 1500 Z71 4WD 1993 Chevrolet C-1500 W/T - Blue - 4.3L V-6, 4 speed auto - Dad's (RIP) 1992 Chevrolet S10 - LS swap project 1968 Chevrolet C-10 longbed fleetside - sold

04-04-2006, 08:41 PM	#10
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: Does anyone make a 3" catback its just a 350....lol, a friend of mine has 3" on his 96 Camaro and I love the sound........but i guess with me having headers and no cats.. I could prob still be pleased with a 2.5 __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

04-05-2006, 01:00 AM	#12
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	Re: Does anyone make a 3" catback I did 3" manderal on my truck. I bought the bends and cut the angles needed then but welded them system together. Alot of hours involvedbut thats the only way to get 3" that I know. 2.5 dual will be fine. The muffler and tail pipe will determin the sound for the most part. It should sound really nice anyways. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

04-05-2006, 01:02 AM	#13
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	Re: Does anyone make a 3" catback Did you notice the kit is stainless tube ? Thats why it $$$$$. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

04-05-2006, 01:02 AM	#14
MACO Registered User Join Date: Sep 2005 Location: British Columbia CANADA Posts: 118	Re: Does anyone make a 3" catback I ordered the Magnaflow stainless system for my truck. It cost me the same as a regular muffler shop exhaust. It isn't here yet so I doin't now how it fits or sounds. __________________ 1969 C20 Customer Camper CST, 396, TH400, Factory A/C, Olive Green.

04-05-2006, 02:12 PM	#16
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: Does anyone make a 3" catback yeah me too....and a sound clip if you have able __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

04-05-2006, 02:26 PM	#17
boundstaffpress Jamie Hyneman is my twin Join Date: Nov 2005 Location: La Junta, Colorado Posts: 705	Re: Does anyone make a 3" catback "H" or "X" pipe will give the even tone. I always liked the sound of dynomax super turbo mufflers. They are low and throaty without breaking the bank. They are even lifetime gauranteed for those of you who live in the salt banks of the midwest. 3" exhaust will not provide enough back pressure from what I've heard. 2.5" will be big enough to provide for lots of HP, and small enough to give ample backpressure. __________________ Justin SOLD 1967 K10 Fleetside, 283, Front and Rear Posi SOLD Color Wiring Diagrams Now in High Resolution V8 and Cab and Cab and Chassis



Register or Log In To remove these advertisements.

04-05-2006, 05:56 PM	#18
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	Re: Does anyone make a 3" catback heres my sound clip with my 6 cyl below in my sig

04-05-2006, 06:03 PM	#19
MACO Registered User Join Date: Sep 2005 Location: British Columbia CANADA Posts: 118	Re: Does anyone make a 3" catback When my exhaust arrives and I get it installed I will do my best to take some pictures of it and possibly a sound clip. Im not looking to get banned from the site! __________________ 1969 C20 Customer Camper CST, 396, TH400, Factory A/C, Olive Green.

04-06-2006, 11:17 PM	#21
powell72 Senior Member Join Date: Jan 2005 Location: Loveland Co. Posts: 3,098	Re: Does anyone make a 3" catback Hey Mario, we would all love to see some pics of that exhaust system, it sounds like alot of work. __________________ Chris 74 Custom Deluxe SWB 350/350/3.73’s 99 2wd Silverado RCSB 5.3/4L60/3.90’s http://www.classictrucks.com/feature...short_bed.html

04-07-2006, 12:03 AM	#22
MandarinSixSeven Seasonal Poster Join Date: Apr 2002 Location: Kelowna BC Canada Posts: 896	Re: Does anyone make a 3" catback ya, I ordered up some mandrel 180 bends from summit and had a local shop cut/weld them up into a turbo-back system for my brick (volvo). I love the sound...even on the 4-cyl it sounds nice and deep __________________ 67 GMC Short Step 350/4-Speed/3.08 Posi Front/Rear Sway Bars Kelowna BC, Canada Member of DTPW

04-07-2006, 08:37 AM	#23
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Re: Does anyone make a 3" catback I`ve had a custom-bent dual system on my`90 Blazer since it was new.I put stainless Thrush hi-flow cats on it.It changed my view on cats.I`d put them on an old truck if I had to,someone gave me some,or I had that much extra money. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Register or Log In To remove these advertisements.