Yea I'm really lookin forward to hearing it crank up for the first time. I may have to sit there for a minute or even be held.. haha But I'm was wondering other than the obvious what is so different between aluminum and stainless steel? i mean the price is like 80-90$ more??

 

h pipe = deep sound and low end torque

x pipe = louder but not as deep, high end power

( i beleive)