| 
			
			 
			
				05-23-2012, 03:45 PM
			
			
			
		 | 
	| 
		
			|  | Senior Club Cobra Member   
 | 
 |  | 
					Join Date: Sep 2000 Location: Holderness, NH, US of A, 
						NH Cobra Make, Engine: CSX 4772 old iron FE 
						Posts: 5,499
					      |  | 
	|    Not Ranked 
 That rear cowl hoop on a 4000 car is 1-1/4" DOM tubing. It is tied into the frame in exactly 10 places. One of those places is the side impact intrusion bars of the same material. There is a good shot of mine here Acton Custom Enterprises Custom Metal for Cobra's |