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					Originally Posted by Kroggers  Anyone know how this would compare to using the same composite stuff from GT-Racing? | 
	
 
Looks like its about 6.5 kg for their top + rear window; without fasteners.  But with the Z top, you'd remove the rear deck lid so it may be a wash, or even come out ahead. 
I'm assuming with either, you would remove the convertible top?