Okay guys, I have longtube headers and I'm convinced that my o2's are the reason why I am getting bad gas mileage. I plan on getting Denso O2's from sparkplugs.com. Now which one's do I order, such as OE Identical vs Universal and which Front and Right O2's do I get because there are 2 different kinds. Also, will the o2 extensions I have on my car now connect okay with the Denso's? I also forget, I would be getting front o2's to connect the extensions with for my longtubes correct?

If someone can help me out asap, I would like to order these today or by tomorrow morning so I can have them by the end of the week. Thanks!

 

General consensus is just get Delcos. Bank 1 and 2 pre cat (sensor 1).
If you go aftermarket get OEM replacement style then your extensions will work.

 

Thanks, do you know any good place online to get o2's for a great price? Do you think it's safe for me to by used stock o2's from someone on here or ls1tech?

 

You could probably get away with it, but I personally wouldn't run used 02s unless they were NIB.

 

your probably right, also with new NIB o2's would for sure show it o2's were the one causing me bad gas mileage.

 

I love the Denso's...and I will most likely never run bosch or Delco again..great 02 if you are using a power adder

the universals are fine ...thats what I use in my LT/LS engines

 

Thanks