Cat is rattling looking for input

[pontiac guy]

I have a 99 3.8, manual, firebird convert. My cat is starting to rattle. The problem is that My car has California emissions. There are 3 O2 sensors and a special converter. Magnaflow now offers a direct fit replacement for my car. 1) Has anyone compared replacement of just the converter against the whole mandrel bent y-pipe and converter replacement. There is a substantial price delta.
2) Do the Pacesetter hedders connect directly to the factory y-pipe w/o mods. I want a clean install, not one that requires a ton of fab. this car is a daily driver.
3) how many people actually come up with the short O2 sensor leads? I am reading conflicting reports here.

any other input is appreciated. Thanks
chris

[Smoke Panther]

Re: Cat is rattling looking for input

2) Do the Pacesetter hedders connect directly to the factory y-pipe w/o mods. I want a clean install, not one that requires a ton of fab. this car is a daily driver.

no, but you won't have to worry about that because the pacesetter headers come with a y-pipe for them

[whitdog54]

Re: Cat is rattling looking for input

Get magnaflow replacement

[Shad0wguy]

Re: Cat is rattling looking for input

I'm getting my exhaust installed this week, so if your interested in a stock replacement cat less than 1 year old let me know.