NTK is the higher end sensor reported to be more accurate and what most like to use.
There is a good thread about pin outs and using the NTK on the Sniper here with good links within....
https://forums.holley.com/showthread...WBO2-terminals
Could also check with Chris at EFI Sytem Pro. He offers both the Holley and NTK sensors. I'm not sure if he offers the NTK with correct pin outs and correct plug but worth asking.
https://www.efisystempro.com
Chris does offer the Sniper Bosch sensor cheaper than anywhere else I've looked at $70 vs $135
https://www.efisystempro.com/sensors...er-tbi-554-155
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