Minority Deport
2008-12-15, 03:46
i just bought a magnaflow exhaust for my cherokee. First of all I am very satisfied with the sound and it stays quiet when i want it and loud when i get on the throttle. It's a straight through muffler with an offset.
I was wondering as far as intake and exhaust is concerned. My exhaust goes 2 precats for each bank of 3 headers and a cat before the muffler. I'm trying to word this i can't really explain it good. Does the muffler even matter as car as flow. If the highest resistance is the main cat whatever beyond that (as long as it lets more flow) doesn't even matter.
For example say you have pipe in sections and different sizes letting air through. I'll designate cfm. Each number is a section. lets assume the
ex 1 300cfm, 300cfm, 300cfm, 100cfm (cat), 300cfm, 300cfm (stock muffler), 300cfm
ex 2 300cfm, 300cfm, 300cfm, 100cfm (cat), 300cfm, 400cfm(larger muffler), 300cfm
The smallest pipe in 1 is 100cfm, and i assume the max flow is 100cfm
In 2 the "exhaust" lets more air through, but the smallest pipe is still 100cfm
I don't know how much exhaust flows that why i used easy numbers. Do they flow the same, or does it flow slightly better.
I was wondering as far as intake and exhaust is concerned. My exhaust goes 2 precats for each bank of 3 headers and a cat before the muffler. I'm trying to word this i can't really explain it good. Does the muffler even matter as car as flow. If the highest resistance is the main cat whatever beyond that (as long as it lets more flow) doesn't even matter.
For example say you have pipe in sections and different sizes letting air through. I'll designate cfm. Each number is a section. lets assume the
ex 1 300cfm, 300cfm, 300cfm, 100cfm (cat), 300cfm, 300cfm (stock muffler), 300cfm
ex 2 300cfm, 300cfm, 300cfm, 100cfm (cat), 300cfm, 400cfm(larger muffler), 300cfm
The smallest pipe in 1 is 100cfm, and i assume the max flow is 100cfm
In 2 the "exhaust" lets more air through, but the smallest pipe is still 100cfm
I don't know how much exhaust flows that why i used easy numbers. Do they flow the same, or does it flow slightly better.