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				07-12-2023, 08:13 PM
			
			
			
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					Join Date: Aug 2021 Location: Tempe, 
						AZ Cobra Make, Engine:  
						Posts: 75
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	|    Not Ranked 
 I wouldn't know about aftermarket in-tank pumps.  As for external, it will matter how it's mounted.  Mounted on a panel will have a higher pitch and be like a speaker.  A proper rubber isolation mounted on a something solid will keep it as quiet as it can be.  If it's isolated right, you won't hear is while the engines running. At least in my experience.
 
 -Shawn
 
				__________________Shawn
 Tempe, AZ, USA
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