Quote:
	
	
		| 
			
				 
					Originally Posted by Ian
					
				 
				
	Quote: 
	
	
		| 
			
				 
					Originally Posted by Squirrel
					
				 
				only revs to 66   ...its a 4 cylinder, even the new z06 revs to 7    
			
		 | 
	 
	 
 The cobalt doesnt have a titanium valvetrain    
			
		 | 
	
	
 also keep in mind the power doesnt peak/drop off up to that point...hmmm higher rev limiter maybe better springs=7k+rpms...again no tuning available that i know of yet.