LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Dang my car is LOUD

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Old 02-26-2003, 11:50 AM
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Unhappy Dang my car is LOUD

Okay....as I always say, HP mods before good looks/sounds. Well I am friggin sick of the "tin can muffler" sound I got by removing the cats. Any reccommendations on how to quiet her down? It really agitates me around 2500-3000 rpm's ... please help!
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Old 02-26-2003, 11:55 AM
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Re: Dang my car is LOUD

Originally posted by zman28000
Okay....as I always say, HP mods before good looks/sounds. Well I am friggin sick of the "tin can muffler" sound I got by removing the cats. Any reccommendations on how to quiet her down? It really agitates me around 2500-3000 rpm's ... please help!
Glad to hear I'm not the only one that thinks removing the cats sounds like S**T. To me it sounds like a old Ford with glasspacks. Even worse when your standing outside listening to it pass by.
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Old 02-26-2003, 12:01 PM
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Re: Dang my car is LOUD

Originally posted by zman28000
Okay....as I always say, HP mods before good looks/sounds. Well I am friggin sick of the "tin can muffler" sound I got by removing the cats. Any reccommendations on how to quiet her down? It really agitates me around 2500-3000 rpm's ... please help!
Hmmmm......I hate to sound stupid but would putting cats back on help?
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Old 02-26-2003, 12:08 PM
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well I suppose that it would, but I dont like the feeling of regression. I know that u don't gain a whole lot by removing the cats, but every little bit helps, right? Is there a quiet muffler made for our car out there?
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Old 02-26-2003, 12:13 PM
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yea i agree, when cats are removed it gets kinda anoying a bit...but hey, I still love making everyone turn their heads within a mile radius. When you get on it yea it sounds kinda crappy...but i dont know, theres just something about THE LOUDNESS

Oh btw...drive underneath a 6 lane highway overpass, and floor it with the ttops offf and windows down. Its something you will never forget...I did that yesterday with a red c5 trying to keep up with me.
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Old 02-26-2003, 12:13 PM
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You should get a high flow cat.
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Old 02-26-2003, 12:15 PM
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how about putting an extra dynomax ultraflow between the i-pipe and y-pipe in place of the cat?

I have an offroad y-pipe going to a flowbastard muffler, and it doesn't get that tin-can ratty sound, luckily. i'm switching over to hooker aero's soon though, so hopefull that ratty sound won't come back.
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Old 02-26-2003, 12:16 PM
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A High flow cat would work, but could I do it with just 1 cat with me having a 96? I have o2 sims, so it shouldn't be a problem right?
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Old 02-26-2003, 12:20 PM
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Try Headers, no cats with the cutout open

That's the way I've been running for a few weeks now(had it capped for the longest time)

Now that's L O U D!


Billy
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Old 02-26-2003, 12:36 PM
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I like the Dynomax Ultraflow. Combines high flow with great noise reduction. Click on the 1st video on my webpage to hear how it sounds at WOT. Some people have but a Dynomax Bullet muffler in place of the cat, and that seems to help also.
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Old 02-26-2003, 12:41 PM
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I personally LOVED the sound of no cat. I like it way better then my cut-out. But yea my car is sooo loud its annoying..
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Old 02-26-2003, 12:48 PM
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I have Macs, Mac y-pipe, B&B tri flo with a cutout.

My high flow cat was gutted (bought it used that way), and it sounded like crap.

Get an offroad pipe instead of the cat. The resonating sound disappears, and the sound is much cleaner.
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Old 02-26-2003, 12:52 PM
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i think a lot of people go with a bullet muffler in place of the cat. Suppose to be almost as loud but less raspy.
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Old 02-26-2003, 01:00 PM
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Talking

Zman,

Just run a different exhaust tip at the rear. I took my cat of too and got frustrated with the sound after a while. I put some tips that go past the rear bumber about 1-1.5" and that definitely helped tone down the inner cab sound. You can probably get some cheap ones locally or add an extension to the pizza box originals---if thats what you have---they have that at local parts stores around.----Just a thought----You figure it out.
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Old 02-26-2003, 01:28 PM
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Originally posted by 1RedHotZ28
Try Headers, no cats with the cutout open
Now that's L O U D!
yes, but does it sound *good*? Loud doesn't always mean good... although some people on this board seem to think otherwise. I'm actually trying to quiet my car down a bit right now..

i've heard a friend's LT1 car with mac headers, ypipe, offroad pipe, and a full open borla...... on a stock cam.

it didn't sound too good But yeah, it was super loud...
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