which upstream o2's for installing Speed Engineering LT headers
 

guys,

I will be installing Speed Engineering 1 3/4" LT headers on my 98 trans am in a few weeks. So I figured instead of spending money on o2 extensions I figured I would just install brand new upstream sensors. Only brands im sticking with are Denso or Ac delco. Which of the 2 have you guys had luck with? Also for the corvette o2's those would be the downstream corvette o2 sensors I would be using correct?

Densos have worked well for me.

He's asking for what application.

I can't remember but I'm pretty sure it was corvette 02's but I can't remember front or rear or what year. I think it was c5 rears, but someone will have to chime in and clear that up that has a better memory than I do.

I don't remember if they are the downstream or upstream ones on the Corvette. But the part # for the ones I have is Denso 234-4617. They have way more than enough slack.

awesome, thanks man. yeah I did some more digging around online and it looks like its the corvette downstream sensors that will work if you decide to go with those
LS1Tech FTW!!!!

just repin the pcm to read the front sensor from the rear plug in, no worries of burnt wires