Yes they are Scott BRISK GOR15LGS are the same as 104 - 103 kind of in the middle of the 2
I was told if running 1.9 rockers cam depending on what set up to run
BRISK GOR14LGS
and like i said so far is one very impressive set of plugs for my mods..


My Mods are
3.4 Pully
DHP 1.0
CAI
180 T-Stat
SLP Headers
Hi-Flow Cat
BRISK GOR15LGS
No Res
3"pipe back to the Y
Flow Master 40's

So little better then Stock

John