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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 01-20-2012, 12:33 PM   #1
whitedemon
 
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exhaust tone with magnaflow and obx

i just installed my new obx longtubes with catless mid pipes and magnaflow 3in comp catback system, 16483, and im not real happy with the sound. It has a rattly sound at around 3-4k rpm and sounds terrible on cold start... when i started it up this morning it sounded horrible standing behind the car. Im looking for more of a deep throaty sound. Is there something i can do to make cold starts not sound like a POS and maybe cut down on the rattling sound on acceleration? maybe a high flow cat? or changing mufflers? any help is greatly appreciated!
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Old 01-20-2012, 12:39 PM   #2
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look here
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Old 01-20-2012, 12:56 PM   #3
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look here
thanks, but still really dont answer my question. Will a high flow cat take the popping/rattle noise away? and if it does will it make it noticeably more quite? I am a huge fan of magnaflow quality and sound but with catless lt's, it aint cutting it.
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Old 01-20-2012, 01:00 PM   #4
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How does it sound once it warms up?

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Old 01-20-2012, 01:10 PM   #5
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How does it sound once it warms up?

Erik
at idle it sounds good, not as loud as i would want it and doesnt rattle as bad. I can deal with it once its warmed up. But on cold start you dont hear the deep sound of the muffler, you just hear header noise, its hard to explain. ill try to get a video of cold start up here soon. Im sure its just like everyone elses with headers but im very picky with my exhaust. I understand it wont sound like a mustang or anything but i kind of expected a deep throaty loud exhaust with my set up and instead i got a not real loud, rattly, noisey exhaust. The best part of the system is WOT, it screams and sounds amazing when you slam it but far as normal driving its just not what im looking for.
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Old 01-20-2012, 01:13 PM   #6
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Get the JBA exhaust if you like the muscle car sound. This clip is with cats also!

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Old 01-20-2012, 01:24 PM   #7
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Get the JBA exhaust if you like the muscle car sound. This clip is with cats also!

i dont think this sound clip is cold start. I think I have came to the conclusion, from viewing other videos, the noise im talking about is def from headers. I love the power i got out of them, even without a tune yet i can still feel the increase, but the headers make the exhaust more high pitched and noisy instead of deep. I liked the sound of the magnaflows before i added headers but it was way quite, so i added headers and no cats to make it loud and now this is where i am...
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Old 01-20-2012, 01:32 PM   #8
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http://youtu.be/BbcRPMtkZ0s

This is about what i want my exhaust to sound like. How can i make my exhaust sound similar with my lt's?
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Old 01-20-2012, 01:40 PM   #9
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looks like he doesn't have headers
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Old 01-20-2012, 01:58 PM   #10
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looks like he doesn't have headers
correct he doesn't. So is there no way to make my exhaust sound similar with lt's?
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Old 01-20-2012, 02:24 PM   #11
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Quote:
Originally Posted by whitedemon View Post
correct he doesn't. So is there no way to make my exhaust sound similar with lt's?
yes go with different cat back system
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Old 01-20-2012, 02:37 PM   #12
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Old 01-20-2012, 02:39 PM   #13
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I think high flow cats should help the tone and raspy sound a bit. If it's still not to your liking I would then move on to a different muffler set up.
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Old 01-20-2012, 02:50 PM   #14
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The problem is running without cats I have the same issue with my Magnaflow street series.
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Old 01-20-2012, 03:38 PM   #15
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thanks guys. I like the flowmaster catback, i have road in one before that came in the shop with lt's and it sounded real good but the drone was terrible at highway speeds. Least with magnaflow there is no drone. I guess im going to try to get use to it for a little while and see, if not ill be switching catbacks
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Old 01-20-2012, 08:07 PM   #16
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[QUOTE=whitedemon;4350892]thanks guys. I like the flowmaster catback, i have road in one before that came in the shop with lt's and it sounded real good but the drone was terrible at highway speeds. Least with magnaflow there is no drone. I guess im going to try to get use to it for a little while and see, if not ill be switching catbacks[/

I heard hi-flow cats give a cleaner sound thats why I did them instead of the catless pipes. If you have the Large tips and change out your exhaust I would purchase from you.
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Old 01-22-2012, 12:36 PM   #17
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Ok but if I go with high flow cats how much quitter will it make it?
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Old 01-22-2012, 12:47 PM   #18
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It will be minimal in levels of sound... I took mine off and it was only a little louder. Most shops I have talked to swear high flows won't hinder sound, very little difference.
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