Exhaust silencers - MustangForums.com

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Old 08-18-2015, 11:57 PM   #1  
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Default Exhaust silencers

Hey guys, my GT has an aftermarket H pipe and borla s-types and it is really loud, but on long drives I want to make it quieter. Would these work on the borla s type 4.5 inch tip? And would they damage the engine because of decreased exhaust flow? Also, would removing the cats make a difference if my aftermarket H pipe has 3 inch piping?
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Old 08-27-2015, 10:25 PM   #2  
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If u want it quieter then u need to change to a quieter muffler or get high flow cats
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Old 09-04-2015, 06:39 AM   #3  
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I think borla makes a muffler one step quieter than the s-types. You could swap out to that and see how it goes.
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Old 09-10-2015, 10:33 PM   #4  
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I put the stock stuff back in but im thinking of electric cutouts.
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