what is the corvette 02 sensors part #?
 

I looked it up in our system at Advance and it's 13111 bosch but it's not the one with the long ass extension

I thought the 13111 wheres supposed to be realllllllllllly long?

You're better off with AC Delco O2's for the stock application, and premade extensions.
Read this https://ls1tech.com/forums/showthrea...ighlight=p0153

They should be the long ones. Just ask to see them before you buy them. I bought a pair and some ass put stock ones in the box and i had to have them returned for a new set

dats bad
 

My brother has a 00
red ss with a ls1 and makes
475 rwhp. Runs 590's in
the eighth.

I work there the 13111 are listed has upstream I believe

I don't work there and I looked it up on their site and it says downstream. See the attachment.

Whatever the case you're wasting your time with them.

ok so I should get delco downstreams

As I said in post #3 get the OEM front O2's with premade extensions.

Agreed. But to answer your question Bosch 13111 has the retarded long wire harness. 2 of them sitting right here.