magnaflow on '07 avalanche

[blue02Z]

hey guys, my mom is getting a new avalanche in the next few weeks and she is gonna put exhaust on it. she opted for the vortec max. she has an '04 right now and it has a flowmaster 40 series on it and she doesnt like the drone it has. i was thinkin goin with dual magnaflows. its gonna be dumped before the axle. what do ya'll think?

[unrthdxdream]

i like my single magnaflow i have on my 5.3... i got the short 12in casing and i think its pretty tame sounding... no drone up around 75-80mph... nice straight through design too... so i would say if you go with a couple 14 or 16in casings your mom will be fine with it and have no drone... however dumping it may also be part of the problem for the drone you have... if you get the exit out the back or sides it will be less likely that you hear any drone.

[blue02Z]

thanks for the info. her flowmaster right now exits out the back and it is just kinda annoying on long trips. especially if you sit in the back seat

[blue02Z]

well, we got the magnaflow and it sounded like shit!! maybe cuz the duesch put on mufflers that were a mile long. so we got some borla turbos and they sound mean. good stuff and quiet on the highway