Straight Pipe Cat delete magnaflow set up.. Almost way too loud! - Pontiac GTO Forum
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post #1 of 9 (permalink) Old 04-02-2012, 12:24 AM Thread Starter
 
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Straight Pipe Cat delete magnaflow set up.. Almost way too loud!

Hi! I have a custom straight pipe cat delete with magnaflow exhaust and mufflers. The set up sounds good but it's almost way too loud!
I've been looking into different resonators but I would hate cutting off the magnaflows! I've been looking at different mufflers but not sure if that's gonna make much of a difference!

I'm up for suggestions.

is a link to how my car sounds like.. The sound is at the end of the video!
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post #2 of 9 (permalink) Old 04-02-2012, 09:32 AM
 
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i'll trade you my resonator for the x pipe. that'll keep the noise down
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post #3 of 9 (permalink) Old 04-03-2012, 10:49 AM
 
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Put cats back on and it won't be as loud.
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post #4 of 9 (permalink) Old 04-05-2012, 05:43 PM
 
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Originally Posted by jpalamar View Post
Put cats back on and it won't be as loud.
Agreed, I had no cats and no mufflers, the volume was great...the exhuast note was TERRIBLE. I had the cats put back in and the low end grunt re appeared plus the the a better exhaust note also.
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post #5 of 9 (permalink) Old 04-05-2012, 05:46 PM
 
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Originally Posted by Alireza View Post
Hi! I have a custom straight pipe cat delete with magnaflow exhaust and mufflers. The set up sounds good but it's almost way too loud!
I've been looking into different resonators but I would hate cutting off the magnaflows! I've been looking at different mufflers but not sure if that's gonna make much of a difference!

I'm up for suggestions.

Here is a link to how my car sounds like.. The sound is at the end of the video!
On tickover it's sounds pretty good but at higher revs it seems to lose some of the note. I'm guessing this is amplified when driving above 3K revs?
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post #6 of 9 (permalink) Old 04-05-2012, 11:16 PM Thread Starter
 
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On tickover it's sounds pretty good but at higher revs it seems to lose some of the note. I'm guessing this is amplified when driving above 3K revs?
amplified is an understatement. It screams like stepping on a lion's tail once I floor it. when I let go of the throttle it sounds like an out of breath dinosaur grasping for air.
I think I'm going to find a way to put the cats back on far back near the rear resonators! not sure of that's possible but I don't want to cut the straight pipes. I don't need the sensors to be connected since they are already tuned out.
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post #7 of 9 (permalink) Old 04-06-2012, 01:21 AM
 
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You could insert a couple of dynomax race bullet mufflers just in front of the magnaflows, a lot of guys have used them for a resonators with good results.

http://www.summitracing.com/parts/WLK-24215/

2005 GOAT
LS2 6.0
Lunati Voodoo Cam .227/.233 .584/.584 113LSA|Stainless Works full length headers/Catless Mids|X-pipe|Flowmaster Outlaws|FAST 102|Lingenfelter CAI|
420RWHP/409RWTQ SAE Corrected.
Tuned by BLUECAT
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post #8 of 9 (permalink) Old 04-06-2012, 11:54 AM
 
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Moving the placement of the cats it sort of weird. I think it might look bad since theres not a lot of clearance for them and they might hang down. But something sounds weird about your exhaust note, sounds like an old camaro.
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post #9 of 9 (permalink) Old 04-15-2012, 07:51 AM
 
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Moving the placement of the cats it sort of weird. I think it might look bad since theres not a lot of clearance for them and they might hang down. But something sounds weird about your exhaust note, sounds like an old camaro.
Yeah I noticed that, a sort of mettalicky crackle on the over run. When I had my cats and mufflers removed, had a similar sound, but much much worse than this one!
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