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How hard is the process of punching out your pre-cats once you have the dp's off?

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Old 01-29-2004, 07:02 PM
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How hard is the process of punching out your pre-cats once you have the dp's off?
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Old 01-29-2004, 09:08 PM
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Default Pretty simple
it's a little weird at first, but just beat really hard with a sharp object and it'll be all good.
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Old 01-30-2004, 12:49 AM
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what about relocating the o2 sensors
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Old 01-30-2004, 12:54 AM
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its kind of a PITA, but not really tough
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Old 01-30-2004, 12:58 AM
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would i need a shop to do the relocating or what tools would i need to do it myself?
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Old 01-30-2004, 01:27 AM
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Default I don't think you'll need to relocate if you're just doing the precats.
I know piggy pipes do though...

Just buy plugs that will thread into the second O2 sensors, then drill a hole for a bung that you will weld just downstream of the second cat. No biggie!
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Old 01-30-2004, 01:38 AM
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so if the sensor goes bad, what do you just cut it out? if you weld it than its pretty much stuck
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Old 01-30-2004, 07:18 AM
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You weld the bung not the sensor. You'll fry the sensor if you weld it.
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Old 01-30-2004, 07:59 AM
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what kind of welding skills do you have?
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Old 01-30-2004, 08:57 AM
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Default i know someone who welds for a living so thats no big deal i just dont know how much of a pain it
will be if that welded O2 sensor goes out
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