that's like some n00blet to imports comin in and rocking an RB30ET in his R33 GTSt cos it's a higher capacity engine. Its same same but different, but anyone who knows anything about em will call him out for running an SOHC like a n00b.
the 1 piece VS-SS's don't sport rivets, just the 2 piece ones, which are the ones everyone buys, cos they allow for mad dish options... as demonstrated.