My USP test pipe has a built in o2 spacer but it isn't creating enough of a difference to avoid a cel apparently.
The 42dd cnc pieces are very nice but $40 is a lot of an o2 spacer. Their design offers clearance for the o2 sensor that otherwise sticks straight out, however my USP test pipe already provides this fuction. Therefor, I need a straight spacer hopefully for about $5 from the autoparts store. They sell these at autozone. Does anyone know where I can get one that will work for our cars for cheap?