i thought they welded the asm thing on the BOTTOm of the canisters

 

They do, but older versions would not have the stamp. Newer ones do have it on the bottom.

 

My mistake
good catch

 

nice regardless

 

I think its ASM....i cant wait for my 70mm single

 

my friend said its not a copy... i dont know butill be checkin it out this week! it has a low dry sound. he said it sounds like a bike exhaust.

 

im pretty sure that that is the top speed exhuast from EBAY you can get it for like $400 or so shipped!! check it out and they arent bad sounding either they actually have a deep tone they have a video on youtube of one with it