SFI versus non SFI approved scattershields

Hey guys,

Im looking at some scattershields and obviously the non SFI ones are cheaper. my question is at what et does the track (nhra rulebook i guess) require that a manual transmission car have an sfi approved scattershield? also, how many years does SFI ratings last and can they be recertified or do you need a new peice afterwards? I plan on drag racing my car, so a bellhousing is a must, but the car probably wont see anything faster than mid 12's for atleast a few years, so this would be helpful to me.

thanks guys
Author: admin