I need an OEM cat for an m20. I'm near Philadelphia in New Jersey, but willing to travel up to NYC.
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WTB: OEM m20 Catalytic Converter near NJ/PA/NY
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After talking to my mechanic and thinking about this, I no longer need the OEM cat. I'm replacing the whole exhaust so a new cat seems like a better choice than a used OEM.
I'm going with this setup:
Headers: Schmiedmann sport manifold
Cat: MagnaFlow 94008 (this is the dual-pipe at both ends, "e36" version, but the pipe diameter is the same 2in)
Muffler: Ireland Engineering Cat-back
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Originally posted by E30darkknight View PostYou should put a Remus Sport cat back muffler on it!!!
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if you have not already ordered the cat I would strongly recommend a OEM piece either new or used over an aftermarket cat. OEM typically last 20+ years, where as aftermarket are lucky if they last 2.Shawn @ Bimmerbuddies
Bimmerbuddies LLC
717-388-1256
2971a Roundtop Rd, Middletown PA 17057
bimmerbuddiesllc@gmail.com
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Originally posted by SmokeE30 View Postif you have not already ordered the cat I would strongly recommend a OEM piece either new or used over an aftermarket cat. OEM typically last 20+ years, where as aftermarket are lucky if they last 2.
On the one hand i need to fab up something to connect this "universal" cat to the headers and muffler, and like you said it probably won't last long, on the other hand i read that high flow cats do give about a 5hp boost over the stock cat, and I don't daily the e30 so a 2 year cat will last me plenty...
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those headers will give you or your mechanic a hard time with an installsigpic
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not to mention that a cat is "high flow" cause it does less of what a cat is supposed to do. May as well consider a resonator (subject to state inspection requirements of course))Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com
https://www.r3vlimited.com/board/sho...86#post4944786
Alice the Time Capsule
http://www.r3vlimited.com/board/showthread.php?t=360504
87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220
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So I decided to stick with the magnaflow, and I got pipes that need to be welded to it in order to make it fit with the IE muffler and Schmiedmann headers. On both ends I'm just tightening clamps so there will be no welding there, I could change parts of the system at any time.
Originally posted by ZM Blue Devil View Postthose headers will give you or your mechanic a hard time with an install
Originally posted by jeffnhiscars View Postnot to mention that a cat is "high flow" cause it does less of what a cat is supposed to do. May as well consider a resonator (subject to state inspection requirements of course))
I do appreciate all of this input, the discussion definitely is welcome! I can't wait to hear how the car sounds and behaves after all is done.
Rundown of what I'm doing for anyone curious:
- 17lbs injectors (4-hole)
- sssquid chip for 17lbs injectors and 91 octane (along with the stock chip, will be interesting to test the difference)
- Exhaust: Schmiedmann headers + magnaflow cat + IE muffler/catback
- Suspension: Bilstein sports + H&R sport springs
- Bavauto strut bar
- Last but not least... swapping from auto to 5spd.
- Also got SS brake lines and DSSR kit because why not?
The car's been in the shop for 1 month now but it's been delayed not because of any of the stuff I actually want to do, but because of rust on the floorboards (read: holes in the floor) and brake lines being spaghetti. It's almost all welded up now and brake lines should be done tomorrow. After then the transmission is going in and I'm hoping on the weekend to finish the exhaust.
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I'd be interested to know what dual in dual out cat yes u found for $80. I was quoted $140@ for 2x6" cats after being told not much else would fit. Keep in mind I was working with stock pipes so the options may have been limited.Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com
https://www.r3vlimited.com/board/sho...86#post4944786
Alice the Time Capsule
http://www.r3vlimited.com/board/showthread.php?t=360504
87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220
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Originally posted by jeffnhiscars View PostI'd be interested to know what dual in dual out cat yes u found for $80. I was quoted $140@ for 2x6" cats after being told not much else would fit. Keep in mind I was working with stock pipes so the options may have been limited.
It was $87 when I ordered it, free shipping. Looks like it's $90 now.
Note: the pipe diameters are different, the Magnaflow is actually for an e36 and has 2in pipes and our stock pipes are 1.75in so I got adapters to fit. I'll upload a pic once it's all welded up.
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