Mag 15, Lounder than XXX15?

[darren700 10+ year member]

well my mag seems alot louder than my xxx but then again my xxx was a 12" and the mag is a 15" //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif

 

[B_Campbell 10+ year member]

Just to clarify, yall are comparing the old XXX to the SI mag right?

 

[Johnny Drama 5,000+ posts]

This really wont have any full bearing on the vs. question, but...

My 2 12" mags on a 20.1 in boxes that were too big hit a 149.6 with no tuning. Just threw in a pair of areo ports, didnt try and tune it. Oh, in an xterra

A friend of mine is hitting 148-149s with 2 12" XXX and 2 Hifonics bd1501's in an explorer.