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03-09-2016, 04:03 PM
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#1 |
          
Drives: One of the baddest handling Gen 5s Join Date: Feb 2011
Location: Masachusetts
Posts: 4,177
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Exhaust noise with cats vs catless.
Guys I have a cam, Kooks headers , intake and Magnaflow bullets on the back. Need a little noise reduction. What is the loudness like with cats vs catless. I don't want to get kicked out of track events because of exceeding db ratings.
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03-09-2016, 04:13 PM
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#2 |
Drives: 2010 2SS LS3 Join Date: Dec 2011
Location: Port Credit -ON
Posts: 600
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Hey, I'm also running Magnaflow bullets, headers and catless. I wouldn't do any different, a bit to the raspier side but that's how I like it. from the inside is not that bad, outside is a different story...can hear the car from a couple of blocks away.
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03-09-2016, 07:21 PM
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#3 |
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Homeless Life Chose Me
Drives: LS3 (sold 4/21) Join Date: Nov 2014
Location: Streets of Philly
Posts: 3,648
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Do the magnaflow bullets quiet the exhaust a good amount? What about putting dynomax bullets in middle?
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Pity a man in familiar places, who yet feels like a stranger.
 Last edited by Homeless Man; 03-12-2016 at 12:01 PM. |
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03-12-2016, 08:42 AM
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#4 | |
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Drives: One of the baddest handling Gen 5s Join Date: Feb 2011
Location: Masachusetts
Posts: 4,177
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Quote:
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03-12-2016, 11:07 AM
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#5 |
 Drives: 2011 2SS Join Date: Aug 2014
Location: Sacramento
Posts: 341
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I had the same set up, x-pipe catless with long tubes and magnaflow Magnapacks in the rear. It was a little too loud! But a resonated x pipe took care of it. Simple 2in and 2 out magnaflow, and it replaced the x pipe I had installed.
All the rasp is gone, and it has a much more refined tone. |
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03-12-2016, 12:03 PM
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#6 | |
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Homeless Life Chose Me
Drives: LS3 (sold 4/21) Join Date: Nov 2014
Location: Streets of Philly
Posts: 3,648
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Quote:
__________________
Pity a man in familiar places, who yet feels like a stranger.
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03-12-2016, 02:48 PM
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#7 |
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Writer
Drives: 2010 SS / 1967 Camaro Join Date: May 2009
Location: Chicago, IL
Posts: 7,221
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Cam + catless + small mufflers = LOUD
My experience the longer the mufflers the better.
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PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II 13.15@106 1.95 | 100% Stock 12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune 12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune 11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts 10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800 |
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03-12-2016, 04:26 PM
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#8 | |
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Homeless Life Chose Me
Drives: LS3 (sold 4/21) Join Date: Nov 2014
Location: Streets of Philly
Posts: 3,648
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Quote:
__________________
Pity a man in familiar places, who yet feels like a stranger.
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03-14-2016, 12:25 AM
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#9 |
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Drives: One of the baddest handling Gen 5s Join Date: Feb 2011
Location: Masachusetts
Posts: 4,177
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Well I installed the BBK 2.75" mid x pipe and Kooks hi flo cats and that mad it a tad bit quiet but still loud if you get on it but not as much. It is now acceptable though.
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