Yep, do it while its running, its not that hot, and no worries on shavings is worth it enough.

Get a new LP, I like my raptor FRRP

edge programmer, has all the guages in it, and power, so done.

 

Guages, either pillar or on a programmer, then exhaust, 4inch turbo back, Next air, either AFE stage 1 or BHAF. Then lift pump, either Airdog 100 or Fass 95. Then you have a solid base. Before any big engine upgrades, upgrade your tranny. If its a manual, get a good double disk. If its an auto, you want a well built one. Then you can add anything!!