What is the best cat back for are cars?

 

any aftermarket convertor is better than stock, & not as ugly looking either

 

800-888-8892
Don's Hot Rod
Phoenix
AZ
Performance for Power 2 1/2" in & out
$60
Same as all the others.
To be welded on, using old pipe attachments

 

Karl, for real? My PFP cat was a direct bolt-in...?

 

To be 100% honest, my example came from my purchase for my S-10 Blazer. Back in 1993.
PERHAPS they got "smart"?
I have not purchased one for my Firebird yet,
IT looks new & some paperwork backs that up.
Effective flo is different story, as it works "smog passed", now.