RX7Club.com - Mazda RX7 Forum - True or False (Pre-Cat longevity)

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drm_mchn

03-26-03 11:27 AM

True or False

The pre-cat has a high failure rate between 50 and 60 thousand miles.

dubulup

03-26-03 11:35 AM

most people replace (w/ dp) before that I would think...

Street King

03-26-03 11:48 AM

I had a pre-cat on around 96k miles, saw it glowing red one night and got a SS DP soon after.

RX7Elmo

03-26-03 11:52 AM

true

r0gu3

03-26-03 11:54 AM

Quote:

Originally posted by Street King
I had a pre-cat on around 96k miles, saw it glowing red one night and got a SS DP soon after.

Remember when my whole exhaust was glowing red? :eek:

BrianK

03-26-03 02:14 PM

Re: True or False

Quote:

Originally posted by drm_mchn
The pre-cat has a high failure rate between 50 and 60 thousand miles.

I would say more like between 60 and 80 - 90K miles.

There are some that go sooner, there are some that go later. More importantly, though, is the amount of heat they radiate while they are on the car - functional or not.

A downpipe is definitely a must-get mod.

spurvo

03-26-03 05:25 PM

Mine was gone by 62 K. Core had broken, but thankfully not blown back into the main cat.

djantlive

03-26-03 07:22 PM

I replaced mine with a DP at 80k, it is still in great shape, sitting in my garage looking pretty.

jpandes

03-26-03 07:42 PM

My car "woke-up" big time once I swapped it out for a DP at 90k miles

johnchabin

03-26-03 10:55 PM

Just over 60K - took out my main cat as well...

PVerdieck

03-26-03 11:00 PM

Took mine out at 8K :)

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