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    Cat question

    Ok so you guys have been saying how there are two cats and 4 O2 sensors on a 99 1.8L es 5-spd, i looked under the car and there is only one cat and one o2 sensor. so my question is cant I just cut out the cat and make a race pipe? the o2 sensor is before the cat so I seems like it would be ok, am I wrong?

    #2
    yes you are wrong.

    '04 Titanium RX-8

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      #3
      My cat sleeps on the couch and eats Whiskas. Go figure...

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        #4
        can you tell me how I am wrong?

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          #5
          Originally posted by BMW ///MPOWER
          can you tell me how I am wrong?
          better thank me for this
          Attached Files

          '04 Titanium RX-8

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            #6
            well I do appreciate you taking the time to get this chart for me, but I looked under my car and thats not what it looks like, now I am all confused..... I'll get back to you on this one hehe

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              #7
              Originally posted by BMW ///MPOWER
              but I looked under my car and thats not what it looks like
              this from a guy that thinks 2nd gen RX-7 and Porsche 944 are related

              '04 Titanium RX-8

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                #8
                well whatever i looked under my car and that didnt match up with what i had, you sure thats for a 99 1.8L 5-spd?

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                  #9
                  better take some pics and we can try to identify parts for you, since you have such hard time figuring it out.

                  '04 Titanium RX-8

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                    #10
                    ok im not stupid, i know what all the parts look like. when i get a chance ill take some photos for you to show you.

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                      #11
                      ok i still havent had a chance to take some photos, can you explain to me why if the last O2 sensor is before the cat, why would i need the cat?

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                        #12
                        look at the picture again.

                        your car has TWO O2 sensors, one BEFORE and one AFTER the main cat (the big cylinder thing right below the exhaust manifold.)

                        I can't help you if you can't even identify parts on your car correctly.

                        '04 Titanium RX-8

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