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quietest/cheapest muffler w/ 3" in/out, can I use a diesel muffler on a gasoline?

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Old 02-14-2011, 03:24 PM
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Default quietest/cheapest muffler w/ 3" in/out, can I use a diesel muffler on a gasoline?

I just ordered KBracings turbo kit and I am starting to look for a muffler to go behind the 3" down pipe. I'm looking to get a real cheap muffler that is very quiet

Using a silverado stock muffler seems like it would be the best bet, but I don't think those have a 3" in/out diameter.

There is a 06 F-250 near me that is selling all of his stock exhaust parts, which I think are 3" in/out. what do you guys think about using the muffler off of it? would it be quiet?

Also, could I use a diesel catalytic converter, or are they different from gasoline converters? I don't really want to pay for a new catalytic converter that is 3" in/out, the only reason I would get it is to prevent the gas smell of not having a catalytic converter


OR if there is a way to split the 3" pipe into (2) 2.5" pipes, I might have better options


THANKS!
Old 02-14-2011, 03:28 PM
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you can always take the pipes that you want to use and bring them to your local muffler shop and they can open the pipe to a 3" like you want and use them like that. Good Luck.
Old 02-14-2011, 03:32 PM
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my magnaflow is quieter than stock
Old 02-14-2011, 03:34 PM
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Originally Posted by cnukpup
you can always take the pipes that you want to use and bring them to your local muffler shop and they can open the pipe to a 3" like you want and use them like that. Good Luck.
could they do this with a muffler? I found out that a stock silverado muffler is 2.75" in/out

I wonder if they could expand the inlet/outlet to 3"????
Old 02-14-2011, 03:35 PM
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Originally Posted by lowoh8
my magnaflow is quieter than stock
specs on the muffler?
Old 02-14-2011, 05:17 PM
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Originally Posted by TXjeepTJ
specs on the muffler?
A buddy has a magnaflow that is very quiet! its the 22 inch long body 28 inch over all , 3' in/out

http://www.magnaflow.com/02product/s...e=main&id=9079

its $200 on there site but its like $120 on ebay!

might help!
Old 02-14-2011, 06:40 PM
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I have a 30" overall 5X8 case 3" in and out magnaflow that sounds quiet. until WOT then it sounds mean! I also had the 5x11 case 22" that is quiet.
Old 02-14-2011, 08:29 PM
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Hey buddy I would look into the large case magnaflow or or the large found case ultraflow dynomax... both are under a 100.00 and will flow great and be fairly mellow, remember that turbo will quieten down the exhaust as well. Im very pleased with my ultraflow.
Old 02-14-2011, 08:42 PM
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Originally Posted by TXjeepTJ
could they do this with a muffler? I found out that a stock silverado muffler is 2.75" in/out

I wonder if they could expand the inlet/outlet to 3"????
yes i used to work at a exhaust shop. i did it alot and did it on my own 69 chevelle.
Old 02-16-2011, 09:57 PM
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5x11x22 Magnaflow. Get the center/center and it has two straight runners instead of one.


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