DPF Sensor removal

[Downsized]

Guys,
I'm putting in a Chipit DPF delete pipe and the sensors are stuck tight, any tips on getting them out without damage?
Ute is a 2010 ST with 85000kms.

Cheers

 

[jjohn]

Spray wd, leave it over night.

 

[JPMC]

As above. In my old 07 I sprayed it in CRC 556 left it for a couple of hours and then they undid easy as.