LT1 crew, a little help?

Discussion in 'OT Driven' started by 0wn3d_productivity, Sep 16, 2008.

  1. 0wn3d_productivity

    0wn3d_productivity OT Supporter

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    OK, so the cats on my 97 Formula are kaput- I need to get replacements and pretty quick to get my inspection done. Some local asshats quoted me 2500 :rofl:

    Here's what I'm looking to go with:

    Driver's side--->http://www.jegs.com/i/Magnaflow/642/23517/10002/-1

    Passenger's side----->http://www.jegs.com/i/Magnaflow/642/23518/10002/-1

    I figure the pipes and cats will be ~300 shipped and ~150-200 to install (bad back means I'm farming this one out).

    Opinions? The car currently has 49xxx miles and I just want to repair it and enjoy it. I'm in NY and want to be prepared for tailpipe emissions, otherwise I'd just go with straight pipes and 02 sims.
     
  2. you know me

    you know me OT where the douchbags play

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  3. 0wn3d_productivity

    0wn3d_productivity OT Supporter

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    Gotcha.

    Any downfalls to these cats? Magnaflow is a pretty decent company for parts in my experience.
     
  4. rockstar b

    rockstar b no OT Supporter

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    check out random flows. i have them on my ws6.
     
  5. 0wn3d_productivity

    0wn3d_productivity OT Supporter

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    Are they bolt on? I don't want to add in too much welding tot he price of the bill.
     
  6. um correct me if Im wrong (and it doesnt really help right now if true) but dont cats have a 75000 mile/unlimited time warrenty from teh manufactuerer? If so could you maybe get a dealership to fix it?

    Unless of course the vehicle is modded. Which yours probably is, so you can probably ignore this post
     
  7. 0wn3d_productivity

    0wn3d_productivity OT Supporter

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    I'm not sure about that- it'd be nice for sure. But if mods will void that, then yeah I'm modded.
     
  8. rockstar b

    rockstar b no OT Supporter

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    Sorry, mine are Random Techs. Yes, they are weld-in.
     
  9. 396Hawk

    396Hawk Active Member

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    Mods don't automatically void a warranty, the mods have to be proven to cause the failure. What have you done to the car?

    I have Random Techs on my car. I had a custom dual cat y-pipe built and installed for around $600.

    Welding should add very little to the bill.
     
  10. dr.zed

    dr.zed DR.ZED OT Supporter

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    You "could" upgrade to a pre 96 setup with single cats. Have you considered this?
     
  11. 0wn3d_productivity

    0wn3d_productivity OT Supporter

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    Yup, but I want the dual cats on it. Actually, I want straight pipes but that's another story, just trying to get someone to do it for me.

     
  12. dr.zed

    dr.zed DR.ZED OT Supporter

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  13. 0wn3d_productivity

    0wn3d_productivity OT Supporter

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  14. 396Hawk

    396Hawk Active Member

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    I would talk to a dealer about reaplcing them under warranty before spending any money.
     
  15. deusexaethera

    deusexaethera OT Supporter

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    In the USA, catalysts are required to function properly for 10 years without service. If it dies before then and you can demonstrate reasonable use of the vehicle, the new ones are free; the Feds say so.

    Interestingly, the same law applies to the electric portion of the hybrid powertrain in the Prius -- it's considered emissions equipment. Doesn't mean the batteries will hold a perfect charge forever, but if they completely die, you get new ones for free. (At least on the newer ones, built after the Feds extended the emissions law to cover batteries.)
     
  16. 0wn3d_productivity

    0wn3d_productivity OT Supporter

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    Well, I've had some interesting arguments about covering things that are clearly stated in factory warranties with my local dealer. I'm just not into fighting with them, to be honest. Eventually, I'd have gone with high flow cats anyway- I never understood why the original owner replaced the rest of the exhaust but not the cats anyway.
     
  17. MeanGreen

    MeanGreen New Member

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    its probably just a problem with your opti
     
  18. 0wn3d_productivity

    0wn3d_productivity OT Supporter

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    Shit man, let's not get started with that one!
     
  19. MeanGreen

    MeanGreen New Member

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    oh, its only a matter of time :eek3:
     
  20. 0wn3d_productivity

    0wn3d_productivity OT Supporter

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    I know. When it does, I'll deal with it- part of owning one of these.
     
  21. 0wn3d_productivity

    0wn3d_productivity OT Supporter

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    I went with Magnaflow direct fit high flow cats- they just came in yesterday, but the driver's side has no 02 sensor bung? http://www.jegs.com/i/Magnaflow/642/23517/10002/-1 Weird, because the one for the passenger's side has one in it. I can't imagine it will be a big deal to weld a bung in at the shop when they install them.

    Am I wrong, or shouldn't there be an 02 sensor just after the cat on the driver's side?
     
  22. deusexaethera

    deusexaethera OT Supporter

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    The sensors are usually before the catalyst, so they can measure the quality of the raw exhaust. The catalyst will clean up almost any mess, but the point of the sensor is to keep the engine in tune so the most detailed information is necessary. Post-catalyst sensors are just used to tell if the catalyst is doing its job or not.

    Without knowing more about that specific engine, I can't say why there isn't a sensor on the driver's side, but it's possible they tune both banks the same, since the engine only has one airflow sensor and one intake manifold, so the exhaust should be similar on both banks. Do the catalysts installed right now have one sensor apiece, or just one on the passenger's side?
     
  23. 0wn3d_productivity

    0wn3d_productivity OT Supporter

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    Well, it's a 97 LT1 with dual cats, so I'm not sure- I thought the car had 4 02 sensors- one before and one after each cat. Maybe I'm confused on that? I did get under there and was able to see one sensor after the passenger cat.
     
  24. dr.zed

    dr.zed DR.ZED OT Supporter

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    There ARE sensors after the cats to confirm their operation (96 and 97), which is part of the OBDII requirements. You'd have 4 sensors, two pre cats and two post cats. The after cat sensors are not the same as the pre cat sensors.

    The pre cat sensors on your car are the same as the 94-95 sensors.

    Dex would know that if he had one once out practical knowledge which he does not (but I'm sure he's going to google this in t minus,5 ,4, 3, 2, 1, go go go Dex).
     
  25. HorseDick

    HorseDick Active Member

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    You have long tubes? What kind? How are you going to install that replacement cat pipe if you have long tubes?

    Unless you have something like SLP shorties, that shit will not work.

    If you actually do have long tubes, just get the Magnaflow replacement cats for $70-90 a piece or whatever they are. Any shop will weld them in for $30-40.
     

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