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Old 03-09-2017, 07:04 PM   #1
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WTB Catalytic converters for 99

I am looking for a pair of cats for 99 boxster. I failed smog and need to pass, so I need some with reasonable mileage.

If anyone has a clue as to cause, I am interested. Car is well maintained, no oil burning, oil separator changed before failure... no alarms, runs good. Engine data on duremetric looks good fuel trims are as expected,,, also used snapon fancy dancy scanner and other diagnostic tools etc... the post cat o2 sensor sure enough shows not much cat effeciency.
I do not know why it isn't alarming as like most porsche's it picks everything else up.

But when we put it on smog sniffer HC and NOX are off the charts. hc 150+ NOX 800+


thanks
robert
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Old 03-10-2017, 02:29 AM   #2
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I have pair of cats from 2001 with 105k
Pm if you are interested
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Old 03-10-2017, 05:07 AM   #3
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I may have a pair. If I do they have about 30k miles on them. Let me look in a few
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Ebay Headers, Fabspeed high flow cats, JIC Cross, IPD Plenum, H&R Coilovers, B&M Short Shifter, AEM Uego Gauge Type Analog, Apexi S-AFC Select, 987 air box, Litronics, 2000 Tails and side markers, painted center console, 18" 987 S-Wheels, GT3 Front bumper with splitter.
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Old 03-10-2017, 07:21 AM   #4
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I have a set - just took these pics yesterday. You would need a muffler shop to install them, but it shouldn't be a problem. Located in Maryland.




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Old 03-10-2017, 06:57 PM   #5
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I am trying to find them with down pipes attached. Calif shop can't legally install used cats.

thanks
robert
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Old 03-11-2017, 09:53 AM   #6
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I looked at mine. Mine are shot. sorry
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996 3.4 engine with 2.7 986 5speed transmission
Ebay Headers, Fabspeed high flow cats, JIC Cross, IPD Plenum, H&R Coilovers, B&M Short Shifter, AEM Uego Gauge Type Analog, Apexi S-AFC Select, 987 air box, Litronics, 2000 Tails and side markers, painted center console, 18" 987 S-Wheels, GT3 Front bumper with splitter.
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Old 03-12-2017, 07:32 PM   #7
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pretty sure I have a good set from a 99 left over from my spec boxster build. 50k on them when I pulled them. I'll check in the AM. How does $200 plus shipping sound for the pair complete with downpipes?
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Old 03-16-2017, 09:02 AM   #8
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Quote:
Originally Posted by REBible View Post
I am trying to find them with down pipes attached. Calif shop can't legally install used cats.

thanks
robert
Hey bud, I've got a set from a 99 all OEM in good condition. Removed just recently, stored indoors, good threads on the connections. I can do 200 shipped CON US. I ship tons of parts and can get it out TOMORROW if paid via PP today.
-Mark 9zero4 233one3six9. Please text or leave a message.
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