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I dualed out my truck a while ago with a 40 series flowmaster, and it should pretty loud but it's not. I think the cat is quieting it down a bit. Is there anything I can do without messin up my cat? What is the cap at the bottom of the cat for?
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Wait you have dual exhaust and only one cat?
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what's your state's emissions laws? Here in central IL there are none. I have true duals but with glass packs on all my trucks. I have a flowmaster super 40 series on my 91 s10 blazer 4x4 with the 4.3 v-6 and it's plenty loud with just a single exhaust but I had the cat cut off when I had it installed. I guess I don't know what the cat will do for sound as I always have them cut off.
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Yeah all vehicles that come with a cat must have a y pipe unless you put two on and run two pipes.
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If your cat has a plug that looks like a freeze plug you have a pellet style cat. That is the most restrictive thing out there. Even if you pull the plug and remove the pellets there is a waffle plate in there that will hold some of the pellets and will restrict the exhaust. Replace it with a ceramic honeycomb style cat. You can get universal ones for around $50-$75.. these will flow better and will help you get some better sound for the exhaust.
RH
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would it be ok to pull the plug and see what it's gonna do, or is it not a good idea.
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If you run a y-pipe it is a single exhaust no matter if you have dual tips or not and it will never be all that loud. If you have plenty of extra money and have to have a cat get dual cats and grab another flowmaster 40 series and have a true dual exhaust put on it. I would think that would give you the sound your looking for.
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I know I can get my sound with a new cat. I have had other trucks with the Y pattern exhaust and they have had plenty of volume. Just looking to ditch this twenty+ old cat that is restricting my exhaust to get a better sound. Or uncap it and drop some pellets.
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as mentioned before, it depends on the type of cat. I have one of those round straight thru cats on my blue burb and b4 i put a muffler on it, she was LOUD!!!
On my 79 big 10, i have one of those flat oval types w/ the plug. I have no muffler on it and can hardly hear the sound. That type of muffler robs the sound...no need for a muffler at allll.
sgtdel
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I am going to replace it with a honeycomb style cat because this pellet style one sucks. Anyone know where I can get one for 85 1/2 ton for a good price?
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I can get hi flow cats, what do you consider a good price?
Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project
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cgi.ebay.com/ebaymotors/2...2340QQrdZ1
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JUST REMOVE THE THINGS! YOU WANT IT TO SOUND AWSOME ---- REMOVE THEM!
EDIT: PROFANITY is not allowed on this board. -roundedline Edited by: roundedline at: 5/1/06 11:26 am
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Yeah just help poison the air you and I breathe to live and help ruin the environment so your truck will sound louder! Great advice!
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actually we're all doing our part to poison the air and drive up gas prices and what not by driving these old v8 trucks but we love em. Now if I can just convert a 95 geo metro into a truck lol.
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Well, we are helping the environment by using these old vehicles....no need for factory polution, steel manufacturing, etc, etc building new trucks.
But I agree, keep the smog stuff on them as much as possible. I hated to do it in a way, but I kept my egr,cat, charcoal cannister, exhaust mainfold valve, etc. on my new 383 when i put her in it. By putting a new engine in it, no minimal smoke goes into the atmosphere due to burning oil etc.
But keep the cats on. There is a federal law. Whether it is enforced or not is beside the point. My children and grandchildren (in the future) will need to breathe.
Stepping off the podium now.....
Sgt. Del
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I have a new Magnaflow high flow cat on the way that I can clamp on since my factory cat is clamped on, it's a direct fit. Plus it is smaller than a football and has the honeycomb shell in it so it'll flow a heck of alot better than the stocker clogged up peice of junk. The factory cat is huge man, what a piece of junk.
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I'm as much for clean air as anyone. I'm also installing a hi-flow cat for better sound from my cat-back duals. Nothing compares to a low rumble. The need for oil energy and internal combustion engines are going to be around for a quite awhile longer, like it or lump it and I, for one, don't buy into America being the world villian of pollution. The opposite is true that we indeed lead the world in technology and indeed if there is so-called global warming, we will be the leader in the solution.