This is a pair of O2 Spacers that came from Fabspeed. Used for around 100 miles. $100.00 shipped Image Unavailable, Please Login
Question, are these the 2 piece spacers Fabspeed sells, and do you have the second half for each one?
these are one size they have the small holes on the bottom in the center. You don't need the extentions. I had these on my headers they installed for me.