Originally Posted by Blusmbl
From my understanding. the crash protection is very similar between an M and SA rated helmet. The primary difference is an SA rated helmet will have a fire retardant liner while M's do not. If I remember right at 11.49 you need a fire jacket and at 9.99 you need fire pants, so at that point it doesn't make sense to use an M rated helmet even if the tech inspector doesn't care.

I have window net,Neck collar,gloves,shoes,pants,jacket.Thank you for your input.

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http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/