Finally fixed the Caddy Cat

[SuperSix]

Car's been rattling for a few years - getting progressively worse. I figured the cat substrate had broken down - I was right.

The cat is swedged/crimped on - so after measuring the pipe (2.5") and ordering a heavy duty Wagner butt clamp (No, not THAT one, Zap) I dug in and got it done today.

The acceleration has been getting worse - the crumbled substrate had been blocking the exhaust.

After clearing it out and putting it all back together - took it for a drive - accelerates much better, and sounds pretty bad ass now too.

Pile o' substrate:



Closeup of said substrate:



Empty cat ready to go back in:

[Wrecked Em]

I had an issue with the 85 GN after I installed a new cat (coincided with ATR 3" exhaust install). Soon after, the acceleration started to demise and then the boost dropped off to the point of only building 6# at WOT. I pulled the cat and found the catalyst was melted. Nothing a long hammer handle could not fix. Put the cat back on the car and it has ran like a champ ever since.

[$1987 GN$]

Car's been rattling for a few years - getting progressively worse. I figured the cat substrate had broken down - I was right.

The cat is swedged/crimped on - so after measuring the pipe (2.5") and ordering a heavy duty Wagner butt clamp (No, not THAT one, Zap) I dug in and got it done today.

The acceleration has been getting worse - the crumbled substrate had been blocking the exhaust.

After clearing it out and putting it all back together - took it for a drive - accelerates much better, and sounds pretty bad ass now too.

Pile o' substrate:



Closeup of said substrate:



Empty cat ready to go back in:

Where the heck is your snow?


AJ___

[SuperSix]

What is this "snow" you speak of?

I live just north of Tampa Florida - no snow here.

[$1987 GN$]

What is this "snow" you speak of?

I live just north of Tampa Florida - no snow here.

That's no excuse.
I guess I hijacked your cat thread, ooops.
AJ___

[SuperSix]

Hell, at least you replied.

[DCEPTCN]

We always just called it 'honeycomb', wiseass.

...so, no emissions laws around you?