Which o2 senors: Bosch or NTK?

[OnyxCobra]

I would agree if having the right tool made a difference, but it wouldn't even make it easier.

 

[Paul]

I've always just used an open-ended wrench. Having the tool helps on some cars because it's a bit trickier to get to, but on a Mustang, it's pretty straightforward. Grab yo big-ass wrench and unscrew it. :grin:

 

[ivan12]

Tousley ford sells the sensors for $38 each not sure what brand though, not sure if anyone is interested