I've got the Power Vault muffler on my Proton with a Borla carbon fiber resonator tip at the end and it sounds very 'healthy'. Quiet when idling, nice tone when accelerating moderately, and growls/barks when you put your foot in it. My alpine S/C helps let folks know you're there too if you are being a bit agressive. God, these are fun!
I like the sound ...about the power ..I think it added 100hp......lol j/k kidding
no with good fuel and good air ..its fun and can be alittle noisy when i put my lead foot into it...but it ads to the style.
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