Ecoboost 4" exhaust with Aero 4040 and MBRP resonator

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03-02-2014, 06:49 PM

#71

taubr unit

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ok cool, thanks for clearing that up. I dont really get the difference between a resonator vs a muffler, if both muffle sound then both are mufflers to me, lol

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03-02-2014, 06:59 PM

#72

Snowflake

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Quote:

Originally Posted by Joewee3.5

Some others have mentioned doing that. My diamond eye resonator is actually their 30" muffler. I just have another muffler after that. Still a little volume in the cab.

I didn't put a resonator on mine and the cab noise is not bad. My Terra grappler a/t's are still noisier than the exhaust. I'm only going to assume that when I put my lighter tires and rims on it will be even less.

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03-02-2014, 07:27 PM

#73

Joewee3.5

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If you have catless downpipes and no resonator then the cab volume is high between 2-3000 rpm under acceleration. Cruising may be silent but I've gone without resonators on 3" and 4" and it was loud. Just my opinion though.