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Old 04-08-2020, 07:48 AM
JohnB JohnB is offline
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Supporting Cat Converter Air Tube

If I delete the air injection tubes, how do I support the Cat Converter air tube? I was thinking about re-using the banjo bolt and jbweld the holes closed using high temp jbweld putty. Would this work ok or how have others done it? Thanks for your help.
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Old 04-08-2020, 09:13 AM
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babywag babywag is offline
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Just remove the tube and cap/pinch off @ converter.
Makes no sense to keep it if deleting air pump junk.
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Old 04-08-2020, 09:30 AM
JohnB JohnB is offline
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I thought the cat needed the air so I was going to leave it.
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Old 04-08-2020, 11:04 AM
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Most modern CATs do just fine without air injection.
Many universals come w/o a port for air.
Any that do come with a port it is usually already capped off.

If it was me I'd just yank it all
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Old 04-08-2020, 12:15 PM
JohnB JohnB is offline
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OK thanks for the advice. That will make it easier for sure.
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Old 04-08-2020, 12:17 PM
JohnB JohnB is offline
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Except, my cat is not exactly modern-probably 15-20 years old at least. Does this change anything?
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Old 04-08-2020, 12:45 PM
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If it's a 3-way cat(likely) it'll do just fine without air injection.
Major differences in a 1980-ish CAT vs 2000-ish+.
Original 80s OEM CATs used on these weren't great.
But nobody can really tell you what kind of shape your current one is in.

Also, the engine "tune" has a huge impact on lifespan
Some last 100-200k some last 50k and some only a few years.
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