which one is everyone using...i need a part number....
is it MPE-11229 or 11259 ? one has a 14 inch case the other 18.....

beside magnaflow, what other optionds do i have..lookin for something quiet and free flowing

 

Besides Magnaflow:
Dynomax Ultraflow (or Super turbo for quieter exhaust). You could also run Hooker Aerochamber or Maxflow. Edelbrock makes a straight through designed muffler so does several others.

 

i'm running the MF 4x9x14 straight thrus....on my cammed LS1 it actually quieted it down more than i initially liked.

i got the aluminized
11219

the 4" ones tuck up nicely under my Z



video comparison...xpipe no mufflers, then with...didn't even move the car/camera

 

You need to stop posting those vids because it makes me want duals even worse!

 

Also the 4" round magnapacks, how loud do ya want it?