997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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aftermarket exhaust questions and CELs

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Old 10-04-2011, 12:39 AM
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I have two Milteks, great sound but CEL codes, only 10,000 miles
 
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Old 10-04-2011, 08:28 AM
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Originally Posted by BADBRUNO
I have two Milteks, great sound but CEL codes, only 10,000 miles
Key is what CEL codes....was it 4030 or some other code for exhaust?? Ask the tech, more often can be a bad O2 sensor, not cat's fault.
 
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Old 10-04-2011, 09:54 AM
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Thanks everyone. Europipe and Tubi are two that I have had my eye on. I do want to visit AWE when I have the time. I certainly would appreciate a somewhat local shop to provide customer service in the event of any problems.
 
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Old 10-04-2011, 10:15 AM
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BBI can be custom tailored so that drone may have been the loud version you heard. They make them any way you want so dont count them out.
 
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Old 10-04-2011, 10:19 AM
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Originally Posted by johnww
Key is what CEL codes....was it 4030 or some other code for exhaust?? Ask the tech, more often can be a bad O2 sensor, not cat's fault.
post cat CEL / too rich is a common one with aftermarket exhausts. o2 will typically be fine, the cats efficiency is the problem, over time they get worse and rumor has it the big cat company everyone uses had made multiple revisions to the coatings in the process to prevent the CELs from being tripped.
 
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Old 10-04-2011, 10:23 AM
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Cat Efficiency

Yes I remember it being the Efficiency so I'm going to try these mini cats which are screwed in just before the exhaust bung for the ox sensor.. I don't want to spend the money to throw out this exhaust system again.. The factory is to quiet
 
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Old 10-06-2011, 04:41 AM
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Just opened up the packages on the SPI from Switzer. Installing on Saturday I will let you know how it sounds. The welding and workmanship is amazing !
 
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