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sseilmnop
PostPosted: Sun Sep 11, 2016 1:25 pm 
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GXP exhaust has nice looking tips and appears to be 1/4" bigger. Just curious if anyone has swapped them? Is it a bolt on or a weld on?

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crash93ssei
PostPosted: Mon Sep 12, 2016 7:11 am 
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Downpipe is different, not sure about the cat, but everything else is the same just with different tips.

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2003 SSEi
PostPosted: Mon Sep 12, 2016 7:17 am 
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once upon a Time I had a stock GXP cat back on my Car. I had headers so I cant say if it meets up to the stock downpipe. But from the Cat back its a bolt up install
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nos4blood70
PostPosted: Mon Sep 12, 2016 1:46 pm 
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2003 SSEi wrote:
once upon a Time I had a stock GXP cat back on my Car. I had headers so I cant say if it meets up to the stock downpipe. But from the Cat back its a bolt up install


Did it sound different at all?

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2003 SSEi
PostPosted: Tue Sep 13, 2016 7:07 am 
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nos4blood70 wrote:
2003 SSEi wrote:
once upon a Time I had a stock GXP cat back on my Car. I had headers so I cant say if it meets up to the stock downpipe. But from the Cat back its a bolt up install


Did it sound different at all?


yes Keep in mind the OEM GXP does not have a Resonator and the Pipe diameter upsized .25 from the Cat Back. It was a deeper one, HOWEVER if I was running a GXP Cat Back on a SSEi I would add the OEM or Magnaflow Resonator to keep the rasp down
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sseilmnop
PostPosted: Tue Sep 13, 2016 2:51 pm 
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The cat looks to be in the exact same place on both cars, I'll have to crawl under again. I have some ZZP headers for the car but that is probable a winter project. End goal is ZZP headers, zzp downpipe and cat into gxp exhaust. I will have to think about the resonator.

Thanks for the info!!

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02 SSEI, 1.94 Yella Terra,Gen5 , N*,2-1/4""Phenolic Intercooler,
I SELL, Phenolic Intercoolers, Pulley Pullers, Throttle Bodies, Etc...!!
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sseilmnop
PostPosted: Tue Sep 13, 2016 2:51 pm 
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Joined: Sun May 16, 2010 11:26 pm
Posts: 106
Year and Trim: 2002 SSEi
2003 SSEi
2004 GXP
The cat looks to be in the exact same place on both cars, I'll have to crawl under again. I have some ZZP headers for the car but that is probable a winter project. End goal is ZZP headers, zzp downpipe and cat into gxp exhaust. I will have to think about the resonator.

Thanks for the info!!

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02 SSEI, 1.94 Yella Terra,Gen5 , N*,2-1/4""Phenolic Intercooler,
I SELL, Phenolic Intercoolers, Pulley Pullers, Throttle Bodies, Etc...!!
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Portal » Board index » Mechanical and Maintenance (no chat or performance) » Bonneville GXP/Northstar Powered Cars

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