So I need a " T " fitted to my sr20 so as to work my autometer oil pressure guage and my stock oil sender. What is the original thread size for the stock sender unit compared to the autometer sender

http://www.sr20forum.com/showthread.php?t=122300

why do you still wanna use the stock oil light if you have and oil pressure gauge to look at? http://sr20de.org/showthread.php?t=93952&highlight=oil+gauge+adaptor just spend like $6 on the adaptor here and leave it at that.

The stock pressure sender and warning light is crap. Once it goes off (IF it goes off.... mine didn't), it's too late anyways. I ditched my stock sender about 5 years ago.