Taking Catalytic converter out..??..
Thread Starter
Heel & Toe
Joined: Sep 2017
Posts: 18
Likes: 2
Taking Catalytic converter out..??..
Have a 1982 C3, new headers and dynomax mufflers. Original exhuast with the CAT in-between.. has anyone removed the CAT and gone straight 3” tubbing back (muffler shop recommended)..??.. run ok? Sound different? Thanks
Team Owner
Joined: Jan 2007
Posts: 53,648
Likes: 878
From: Southern Cal Ca
St. Jude Donor '22
Le Mans Master
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
take the cat off .run a long rod thru it to get all the crap out of it .put it back on .cost is nothing.most shops will not touch a cat unless they are replaceing it.It will sound louder.depending on the mufflers you have ,you should not have a problem with the computer light.If you did get a light ,the fix is a heated 02 sensor.
Le Mans Master
Joined: Oct 2007
Posts: 7,453
Likes: 976
From: RI, Now Franklin/Nashville TN
Take the cat off yourself, gut the interior, and put it back OR take the cat off, drive to a muffler shop with the front pipe and rear pipe temporarily suspended, and have the muffler shop weld in a pipe where the cat was BEFORE you went to the shop...no legality issue....RIDICULOUS law, BTW, about cats on 35 year old cars driven a few hundred miles per year.
