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04-27-2002, 09:22 PM | #1 |
Scooby Specialist
Member#: 768
Join Date: Jan 2000
Chapter/Region:
Tri-State
Location: nj
Vehicle:OB, volt, 911, ram 1500, 1098s, m620 |
mrt cat toast after 9 months
well, it looks like there's something wrong with the cat in my headers back exhaust system from mrt. either that or something else fell off in the exhaust in front of the cat and is plugging it.
the system's been on the car since last august and been run maybe 7k miles. will update in the next few weeks when i get a chance to get the stock system swapped back in. roger |
04-27-2002, 09:25 PM | #2 |
Scooby Specialist
Member#: 1165
Join Date: Mar 2000
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How do you know something is wrong? What happened?
NC |
04-27-2002, 09:37 PM | #3 |
Scooby Guru
Member#: 2278
Join Date: Sep 2000
Chapter/Region:
NESIC
Location: Pepperell MA
Vehicle:8Sti | 07 allez White | Comp |
interesting, my car has been running quite poorly lately too, what are your symptoms?
AO |
04-27-2002, 09:40 PM | #4 |
Scooby Specialist
Member#: 768
Join Date: Jan 2000
Chapter/Region:
Tri-State
Location: nj
Vehicle:OB, volt, 911, ram 1500, 1098s, m620 |
a few days ago, the car started not feeling right powerwise and a strange metallic sound showed up. the exhaust sounds more subdued than normal, too. got it up on a lift today and found, by hitting various parts under the car with a rubber mallet, that something is clanging either in or around the cat. nothing is loose on the outside, so it should be inside the exhaust.
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04-28-2002, 12:09 AM | #5 |
Scooby Specialist
Member#: 2003
Join Date: Aug 2000
Chapter/Region:
W. Canada
Location: Calgary, Alberta, Canada
Vehicle:'99 BGP Legacy GT '98 QS Legacy L (auto) |
froggert - sounds likely the "wafers" which the catylist material could have overheated causing it to break from it's bond to the cat-housing. Should take off the header section and shake to see what comes out the end of the cat, that'll tell you if the cat is busted.
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04-28-2002, 02:32 PM | #6 |
Scooby Specialist
Member#: 5030
Join Date: Mar 2001
Chapter/Region:
MAIC
Location: Martinsburg, WV, USA
Vehicle:1999 Legacy 2.5GT 19 Audi RS3, 13 Armada |
I did get word that mrt was redesigning their cats in conjunction with the aid of one of their US distributors. I forget which dealer it was.
The other day I noticed an odd metalic sound whenever I began excelerating. I took a look under the car and one of the spring bolts that attach my catback to the stock cat was missing. This allowed the midpipe to move out of its normal mounting position just slightly but enough for it to vibrate a couple of those heat shielding plates. Brad |
04-29-2002, 03:28 AM | #7 |
Scooby Newbie
Member#: 15434
Join Date: Feb 2002
Location: walla walla/t-town
Vehicle:98 legacy gt caucasian |
apparently the mrt cat's had problems which they are now fixing. many people have ceramic coated the headers of the full mrt system which has fixed the problem. you may want to try doing this, but since you are converting the car to stock, just fix it and sell it. mrt now ceramic coats the headers from the factory to fix this problem. you may want to e-mail them about the problem as you are not the only person that has had this problem.
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04-29-2002, 12:58 PM | #8 |
Scooby Guru
Member#: 2278
Join Date: Sep 2000
Chapter/Region:
NESIC
Location: Pepperell MA
Vehicle:8Sti | 07 allez White | Comp |
it didn't fix my problem...
the coating that is... though, I reciently cleared my CE, about a week ago, and it hasn't come on yet. Which leads me to believe something has changed... what it is, I don't know. I'm going to pull my cat off and see what the deal is. luckily my cat has flanges at both ends so it's easy to check. AO |
05-10-2002, 10:55 AM | #9 |
Scooby Guru
Member#: 2278
Join Date: Sep 2000
Chapter/Region:
NESIC
Location: Pepperell MA
Vehicle:8Sti | 07 allez White | Comp |
I got my system re-freshed this week, a new set of exhaust gaskets, rewelded a bracket...
Guy at the shop 'thinks my cat is hollowed' accourding to the sound. Hrm... maybe it's time for a replace ment one. :-/ AP |
05-10-2002, 02:11 PM | #10 |
Scooby Specialist
Member#: 768
Join Date: Jan 2000
Chapter/Region:
Tri-State
Location: nj
Vehicle:OB, volt, 911, ram 1500, 1098s, m620 |
haven't had a chance to pull the mrt system yet, but the cat seems to have fixed itself. will update in a few weeks when i get the headers off and fish around inside to see what's in there.
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06-10-2002, 11:27 AM | #11 |
Vendor
Member#: 3321
Join Date: Dec 2000
Location: Sydney, NSW, Australia
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Please reply us if we can assist you
Cheers Brett MRT P |
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