Lg4 2 1/2 cat back to stock 2 1/4 cat?
 

New here,
I have a 86 factory stock trans am lg4 5.0 700r4.
Iv read all the upgrade posts cams, headers back, gears, duel snorkel air.

My question is. I have a dynomax super turbo 2 1/2" cat back system
I need to connect it to factory 2 1/4 cat. How do I do it? What adaptors if any?
I am new to building up a car "mechanics for dumbies" was printed just for me!!!
Thank you for any help. I do know that car has ALL its emissions stuff..

Re: Lg4 2 1/2 cat back to stock 2 1/4 cat?
 

First, Welcome to the site! There is a ton of information here, read up!

What state do you live in? I would ditch the cat, your local auto part store will have a pipe that will replace the cat, and several adapters.

Re: Lg4 2 1/2 cat back to stock 2 1/4 cat?
 

I would but what about the little pipe that comes off of it?? I don't want lights on or anything!

Re: Lg4 2 1/2 cat back to stock 2 1/4 cat?
 

The little pipe connects to the smog pump. All a smog pump does is inject fresh air into the cat and exhaust manifolds to try to lower emissions. By removing the cat and smog systems, you will not set a check engine light. There are no engine sensors past the cat on these cars. If you state doesn't have emissions testing, I would just chop the cat off.

Re: Lg4 2 1/2 cat back to stock 2 1/4 cat?
 

No emissions, if I cut off cat it looks like to much of a bend in the pipe to get adaptor to seal right. Yes I'm clamping cant weld and can't afford to have it done.
Anyone have a picture of cat removed with a clamp??

Thanks guys