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#1 |
![]() Join Date: Mar 2010
Location: Colorado Springs CO
Posts: 76
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![]() Last edited by Dmod81; 02-28-2015 at 09:08 PM. |
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#2 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Cats coming apart...or internal rust? could not see pic
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#3 |
![]() Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,169
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Wonder if you have a cat coming apart.
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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#4 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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ok looks fresh, not sure
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#5 |
![]() Join Date: Mar 2010
Location: Colorado Springs CO
Posts: 76
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Cats would make sense. They're pretty new though, fall of '12 if I recall correctly.
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#6 |
![]() Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,169
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You have headers and aftermarket cats? Common resonator?
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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#7 |
![]() Join Date: Mar 2010
Location: Colorado Springs CO
Posts: 76
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Headers, aftermarket cats, x-pipe, b&b mufflers and Z06 valves/tips.
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#8 |
![]() Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,169
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Do you happen to know if they are steel substrate or ceramic honey comb cats. You may be able to collect some of the residue and have it analyzed.
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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#9 |
![]() Join Date: Mar 2010
Location: Colorado Springs CO
Posts: 76
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You know, I really don't know which, but I want to say ceramic. Who could I send it to for analysis? I tried to collect some for a better look, but it gets covered with the exhaust residue and turns black.
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#10 |
![]() Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,169
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It may be more trouble but I think I would drop the exhaust and check the cats. You don't want the particles getting sucked back into the motor as you back off the throttle.
__________________
Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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