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10-11-2013, 11:20 AM
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#1 |
    
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Npp replacement diffuser fitting?
So I'm looking into a Titanium cat-back. I currently have NPP just not quite loud enough. But my question is, is the dual exit exhaust going to be interfered with my diffuser since the one that comes with the NPP system is a little different?
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 2013 SS/RS 1LE VR-Backup System, SOLO Perforsance HF Cats, Muffler Delete, BBK Off-road X-pipe 2002 35th Aniversary SLP SS-Sold |
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10-11-2013, 11:35 AM
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#2 |
 
Drives: Empty Join Date: Jan 2011
Location: Grand Prairie, Tx
Posts: 454
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Are you looking to buy a single tip exhaust system on each side instead of the quad tip npp?
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10-11-2013, 11:36 AM
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#3 |
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Drives: Empty Join Date: Jan 2011
Location: Grand Prairie, Tx
Posts: 454
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Like a Borla, Magnaflow, corsa etc......................????
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10-11-2013, 11:41 AM
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#4 |
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It's going to be a dual exit. (1 each side)
__________________
2013 SS/RS 1LE VR-Backup System, SOLO Perforsance HF Cats, Muffler Delete, BBK Off-road X-pipe 2002 35th Aniversary SLP SS-Sold |
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10-11-2013, 12:16 PM
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#5 |
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Drives: Empty Join Date: Jan 2011
Location: Grand Prairie, Tx
Posts: 454
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Just add the regular Dual diffuser ($70) on gmpartsdirect.com, pull the fuse and install an aftermarket catback like the 2010-2012 models.
1 - 1 of 1 Parts   1   BODY HARDWARE / REAR BUMPER / BUMPER & COMPONENTS / Lower cover Lower cover W/O ZL1, SS MSRPOnline Price$112.46 $70.18View Part Diagram -- Item #19 |
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10-11-2013, 01:29 PM
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#6 | |
       
Drives: 2012 ZL1 - #670 Join Date: Jun 2009
Location: Seminole, Fl.
Posts: 8,009
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Quote:
FYI ... The sound and power restriction is in the OEM cats. I would suggest replacing those with a set of high flows, and the stock NPP will come alive. Even just replacing the stock NPP with an after market cat back will be disappointing with the OEM cats in place.
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10-11-2013, 01:34 PM
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#7 |
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Local dealers are real nazis as far as what they'll let you swap out. Part of the reason I won't be doing LT's in the bear future. On a side not I guess I'm going to be selling a l VERY lightly used NPP cat back if anyone is intessted. Seeing show the fuse has been pulled since the day I got it the valves are in damn near new condition
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2013 SS/RS 1LE VR-Backup System, SOLO Perforsance HF Cats, Muffler Delete, BBK Off-road X-pipe 2002 35th Aniversary SLP SS-Sold |
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