Passenger side cat took a dump, so I am going to replace it. If I am just to swap out cats, not replace all the piping and what not, is it 2.75" inlet and 2.75" outlet? Also, would it be worth it to swap it out for a magnaflow hi-flow cat? I can get them for like 65 bucks. Thanks

 

The Magnaflow cats. are a good quality and cheap replacment. If you are going to replace one side with a high-flow cat, I would do the other side as well.

 

Is that the right size though? 2.75" inlet/outlet?

 

Yes.

 

What year car? That will determine the size of the cat. The 96-97 LT1 dual cat cars have 2-1/4" piping and cats I believe. 93-95 single cat cars are bigger like around 2-3/4" or 3". I have no idea what the 98-02 cars have.

 

It's a 96