Stillen gen3 indent in top pipes

[waahbahbopbop]

What's going on everybody, new here and to the Z community and I'm loving it so far. Got myself a 40th Anniversary M6 with 22k on it a couple weeks ago

First thing did was order a Stillen gen 3, some sort of exhaust is next. Love the intake, can't attest to a substantial increase in power although I know there is evidence out there. Sound is definitely improved from stock.




As stated in the title, when I got the intake everything was packaged very well. Looking at the throttle body side of the top pipes there seems to be a small indent in the lip of both of them. I know it wont cause any problems but just thought it was a bit odd... Is this the normal design?



Came out great though, definitely impressed with the quality even though it was a bit pricey. Bunch of kids were crowding around and asking questions towards the end of the install... as I'm in a big college town. Also took off that horrible license place bracket blocking the view