Originally Posted by oldbogie
For the most part mufflers are the things that are most restrictive to exhaust flow, just slightly better than catalytic converters. Multiple mufflers add quiet but also add flow restriction. The more the restriction to more fuel you burn to provide pumping power off the crankshaft to force the exhaust out.
Restriction is the whole reason behind dual exhaust systems. The typical muffler has a hard time getting to 300 CFM a few exceed that most don't get there. Pipe diameter on the ends has little to do with the problem.
Which Flowmaster they range from pretty quiet to pretty loud and what is this on?
Not to be a smart a** but if you want quiet I find it exciting to drive my wife's PRIUS, the people that don't look before they step off the curb will never hear what hit them. That thing always reminds me of truth in the saying "Loud Pipes Save Lives".
I have never tried resonators. I will have to look into them.
I say adding a glass packs as I thought the were not restrictive since they are a straight thru design, I guess I was wrong. Being a straight thru design glass pack I figured the fiber glass packing around the outer tube would help cancel some sound and not restrict flow.
I am also looking to do what you do in the wifes prius, you have a prius
. No, really I am using my truck for fishing ,camping , and hunting and I dont want to drive thru the woods announcing to all the rabbits I am there.
When I want loud I will open the exhaust cutouts.
84 c-10 350/350