[Shotimes] exhaust question

[Jason Hartberger]

I would honestly do the y-pipe first. The cats are a major restriction, and
damaged cats will *@($ your engine up a lot more than damaged mufflers will.
My exhaust pipe gave up the ghost at 104K... separated at the bend under the
back seat where the pipe changes diameters. The weld just didn't hold up.
I've heard some loud exhausts before, but nothing quite beats straight
pipe.... had it not been for the flex pipe, there would've been a lot more
damage than just having to weld the pipe back on.

Unless you have a really rich mixture, or you've had a couple of cylinders
out for a long time, there shouldn't really be any significant damage to the
cats, as the only thing you can really do to hurt them is to dump way too
much unburnt fuel into them. If you do replace a section, though, I'd go for
the cats first.

Jason


----- Original Message ----- 
From: "ROBERT SCHIRMER" <1surferbum@msn.com>
To: "'TaurusSHO'" <shotimes@autox.team.net>
Sent: Sunday, June 06, 2004 7:16 PM
Subject: [Shotimes] exhaust question


> Guys
>
> I have a '93 ATX with 125,000 on the original exhaust system. How long do
> these original Ford exhaust systems last? Do you typically have the
problems
> first with the Cats, versus the muffler?? Am I living on borrowed time??
>
> If I want to upgrade the exhaust, should I upgrade the front part first (Y
> pipe and cats), or do the back part first (mufflers). It looks like just
the
> front part of the exhaust system is $575 at performance plus (they says
its 2
> 1/4 inch mandrel bent T-304 stainless steel, with High flow cats. 33%
increase
> over the airflow in the original Y-pipe)
>
> Thoughts???
> Bob
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