Usually if the parts are from the same manufacturer, say epic, top,
most places will let it go, unless you have a four magnet issue at that track. i have put p2k's in monster cans p2k-2's in monsters, & monster arms in binary 2 cans, biggest difference was in the binary 2 it had about 1/3 more power & rpm from the monster can, you could see & feel the difference!