ok i have a p5 from about 2 years ago i was wondering what plug to put in it the hobby guy said turbo plug i dont think i ever used one before what should i use

I run the P5XS in my buggy. It takes a standard long plug. I run the LC3 Hot plug in it with 30%. They do make a turbo head button version also. In that case I'd run a P3,P4 or P6.