I'm finally throwing out my stock stuff for SLP shorties, and a magnaflow cat-back with no cats on my 96 z28. The problem arose when I started taking off the old stuff, I found two o2 sensors which i hadn't accounted for around the cats. So I figured I'm gonna have to get a bypass o2 sensor, but where, and how much.

 

For the pair, they will usually run around 90 bucks. That is what I paid for mine off of Thunder Racing.

 

summit racing has o2 sims. or at least they a few months ago.

 

The last time I checked they did, it probably isn't in the catalog though, but I'm sure it is on their site. The sims. are made by Caspers Electronics.

 

Get a MadZ28 tune with the new shorties and exhaust and have him delete the cats.