Bitten by the performance bug, I want to do the Fastman 52mm TB and 3" cat-back exhaust.
Looking at the Flowmaster 70BB II, how does it compare to the Magnaflow or Dynomax? Iwant to keep interior resonance down so Mama can talk to me without concern of a headache! This is for a 2001 QC 1500 5.9L long-bed, 2WD.

 

I have a Dynomax Ultra Flow its really deep and mellow my stock engine noise is louder than the tail pipes
and I have dual outlet muffler which is so post to be louder
the bigger the pipe like a 3" is gonna be mell comeower and deeper
the smaller the pipe 2.25" is gonna be more in depth and popper
muffler difference and tip size is the out

 

I guess that's basically what I'm after, out of Magnaflow, Dynomax, and Flowmaster, Flowmaster is the only one that makes a cat-back system that fits 2001QC long-wheelbase-155" and for only $228 and change!
I just wonder how "quiet" it is inside the cab! I've listened to the sound bytes on Flowmasters website-sounds like the 70 series has a knock in the engine!

 

So, does anybody have experience with the Flowmaster 70?

 

My truck has the flowmaster 40 series muffler on her, a single muffler with dual outs. The pipes are stock so probably 2 1/4" but the tips are 3" i believe. Has a nice sound out the rear, kinda mellow during normal acceleration but sounds nice upon hard throttle. There is some noise in the cab (regular cab) but you can still have a conversation without yelling. Right now I have a huge hole in the pipe after the muffler at the bent before the axle so she's a little louder than normal. Cant patch that up because of the bend.

Although, with the new mopar performance air cleaner I installed all I really hear now is the whistling sound of air being sucked into the throttle body.

Edited: didnt realize I typed teh wrong flowmaster series. doh!

 

or you can get the summit cat-back system for around 150-200 and it is very quiet

 

Thanks for the input, how's the interior noise between 60 and 70 mph? Looking at single exhaust exiting behind rear wheel to replace stock system.

 

on the summit one it is not much louder then stock unless your at WOT or it is cold on inital start-up

this is my truck with the summit exhaust
http://s65.photobucket.com/albums/h223/james_bobholz/?action=view&current=P1010025.flv

 

here is my truck with flowmaster and 3.5" tips

http://s65.photobucket.com/albums/h2...t=P1010090.flv

 

Okay, I'm leaning towards Magnaflow or Dynomax. I've read all the posts about Dynomax Ultra-flow but what about the Turbo line? I like the sound of the Ultra-Flow buthow much louder in the cabis the Dynomax Turbo than the Ultra-Flow? Summit Racing has a nice little Dynomax Turbo SISO for around $200.00 which just might be what I'm looking for. Any thoughts?
Sorry for any repeat questions, I'm looking at doing this myself and only want to do it once!