where can i find a cheap 02 sensor after da cat ?

 

Go to Autozone and get a universal replacement. You'll have to wire it in, but it's cheaper than an OEM one. Why did your O2 sensor go bad, by the way?

 

my factory manifold was cracked and my buddy had an ls header so i used it as a temp but the cat. didnt match up so i jus got a hi flow cat and brought to a shop to weld it on well they decided to well the o2 bung rite under the factory sway bar like idiots and every time i reset it the check engine light would go away but
afta drivin around and hittin minor bumps it jus hit da sway bar and cracked

 

oxygensensor.com

Has stock densos.