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07-26-2014, 01:09 AM
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#1 |
 Drives: 2013 AGM 2SS/RS 1LE Join Date: Apr 2013
Location: Jackson, MS
Posts: 19
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NPP exhaust tone change with AGP TT
Has anyone with the stock NPP done a before and after sound clip of the exhaust with only the AGP twin turbo kit added....or care to describe the change in sound? The assumption is that the stock cats are gone as well.
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07-28-2014, 10:52 AM
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#2 | |
 
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,416
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Quote:
Ted.
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www.jannettyracing.com
Celebrating 39 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
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07-28-2014, 08:31 PM
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#3 |
           
Drives: a M6 LT1 ordered From Becky!!! Join Date: Jan 2010
Location: NJ
Posts: 7,520
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I have the AGP Kit and NPP. If it is too raspy for you you can add a Magnaflow Xpipe to tone things down. I have that setup. It sounds about like stock and there is no drone. I hated stock NPP with LTs. But with turbos I think it is more pleasing.
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"Democracy Dies in Darkness" |
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07-28-2014, 11:40 PM
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#4 |
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Served USN - Atomic Chimp
Drives: 2021 Camaro ZL1 1LE A10 (stock) Join Date: Jul 2012
Location: Fort Collins, CO
Posts: 1,709
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I also have the AGP and NPP. Love it. Not too loud but it does increase when you start FI'ing the motor. Without the cats the car idle and general running around is a bit louder than stock. When the boost is feeding the engine it's definitely louder, but not like the aftermarket setups. I did notice a deepening in tone after AGP install; I presume it was because of the cat delete.
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> 2021 Camaro ZL1 1LE A10 > > Past Builds: 2013 Twin-Turbo LSX434 M6 - 1,359rwhp daily |
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