other than visual.....?
 

how else would u be able to tell if ur car is shooting flames? i hear a pop most the time at redline shifts but its just a pop to me b/c i cannot be inside driving and outside watching my car to see if it has flames.. lol i wish i could !! :boink:
i know a simple thing would be to have someone drive my car but ......... i dont know! lol
jack

then have someone drive behind your car (with video camera)....simple as that.

GOOD THINKIN!! i am very absent minded and do not think of things creatively sometimes lol thanks