bad cat now what?
10-16-2011, 04:36 PM
#1
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Join Date: Mar 2006
Location: Pismo Beach, California
Posts: 139
bad cat now what?
does anyone know a stock replacement cat for a 97 z28? I have a bad cat and can't really find any options except some overpriced places... any ideas?
what's the stock part # for maf sensor also? gotta replace that.
what's the stock part # for maf sensor also? gotta replace that.
10-16-2011, 10:55 PM
#3
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Location: Hell was full so they sent me to NJ
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Re: bad cat now what?
You have two cats.... which one is it - driver's side or passenger side?
Shoebox has a lot of part #'s including the latest replacement numbers for the MAF sensor:
http://shbox.com/1/Parts.htm
Shoebox has a lot of part #'s including the latest replacement numbers for the MAF sensor:
http://shbox.com/1/Parts.htm
10-17-2011, 02:48 PM
#6
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Join Date: Dec 1969
Location: San Diego, CA
Posts: 4,950
Re: bad cat now what?
Unless you're handy with a welder you're going to need to visit a muffler shop. They're be able to provide you choices. I've got a Carsound Cat on mine but the part number is likely different for yours as mine is a single cat setup.
10-17-2011, 05:39 PM
#7
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Join Date: Oct 1999
Location: Cols. OH
Posts: 341
Re: bad cat now what?
I've still got my stock dual cat w/y pipe from when I installed my Kooks and catted Y pipe. They only have 11,000 miles and are from my '96 Z28. Let me know if you want to keep OEM cats on it.
10-18-2011, 06:30 AM
#10
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Location: Cols. OH
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10-18-2011, 09:14 AM
#11
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Join Date: Jul 2010
Location: Westminster, CA
Posts: 349
Re: bad cat now what?
CA has new cat laws: http://www.arb.ca.gov/msprog/aftermk...ftermktcat.htm
CA now requires certified cats or you will technically not pass the smog test (if they look and see a non-stock or non-certified cat, or a relocated cat, you are screwed). To make matters worse, I could not find a junk yard in CA which was even willing to sell me used cats due to the new law.
Your choices to be 100% legal are new certified cats (Walker was the cheapest I saw but do not know of their durability) or used GM on a forum or ebay. I found a guy in MI on ebay who had a dual cat setup he sold me (I have a 95 M6 which is single cat and went to duals so I could use a set of SLP shorties, and even though I will now run cleaner, my car is now illegal.)
CA now requires certified cats or you will technically not pass the smog test (if they look and see a non-stock or non-certified cat, or a relocated cat, you are screwed). To make matters worse, I could not find a junk yard in CA which was even willing to sell me used cats due to the new law.
Your choices to be 100% legal are new certified cats (Walker was the cheapest I saw but do not know of their durability) or used GM on a forum or ebay. I found a guy in MI on ebay who had a dual cat setup he sold me (I have a 95 M6 which is single cat and went to duals so I could use a set of SLP shorties, and even though I will now run cleaner, my car is now illegal.)
10-20-2011, 09:37 PM
#13
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Location: Westminster, CA
Posts: 349
Re: bad cat now what?
That's what I measured pipe OD on the pass side dual cat that I have, not sure what year my exhaust is but it is OBDII as it had post cat O2 sensors. I would double check for with Walker over the phone as their page has the 81908 as both sides which we know is wrong. http://www.walkerexhaust.com/catalog/ecatalog_CARB.asp Don't you love all the BS we go through here in CA while everybody else does full headers and true duals.
10-21-2011, 12:55 AM
#14
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Location: Pismo Beach, California
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Re: bad cat now what?
http://www. summitracing.com/parts/MPE-34026
Would this work? An exhaust shop quoted me $230 for install but can get this same cat for $94 and I'm reading applications say its for dodge on summit but they sell these cats universal on magnaflows site
Would this work? An exhaust shop quoted me $230 for install but can get this same cat for $94 and I'm reading applications say its for dodge on summit but they sell these cats universal on magnaflows site
10-21-2011, 01:23 AM
#15
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Location: Pismo Beach, California
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Re: bad cat now what?
I think Imma spend the extra and get that walker 81908... seems like a direct replacement on our cars... and 2.5 in and out can be welded fine I believe. The other cats I found were 16-17in in length and these walkers seem like legit options to replace stock cats... yea??