Is it worth it to buy the heat shield for the Injen SRI? Will it really make any difference?

 

I doubt a heat shield would be very effective. They only time they really seem to work is when they section off the filter in a corner of the engine bay creating their own little "zone" if you will. Looking at the engine bay of the RA and the position of the filter on a SRI, it doesn't appear to have any such spot exists.

 

I doubt it as well, as the Injen SRI leaves the filter very close to the engine.