I ordered the Kies Motorsports guard (aka VAC), and it would not fit my N55. I have to send it back now due to clearance issues. The self-centering lip design is a great idea, but what they have not factored in, is not all seal clearances are consistent from the factory. Some sit out more, and others back more. My seal sits out mabey 5-7mm more than the lip was designed for which means the bolt holes don't line up, and it doesn't sit flush with the block.
I called VAC and confirmed that they do make the guard for other vendors who put their name on it. I called them because getting some form of speedy communication from Kies was difficult because you can't call them. You send a message, and wait one or two days, they send a message back and ask a question I would reply and would wait another day or two for a response.
VAC wanted me to put the guard on, and lightly TAP it back pushing the seal back more (lol NOPE). They also said I could sand the lip down (again NOPE) not for the $200 that I paid. For $200 bucks this thing should come with Netflix. They did say they have new versions with the lip shaved back more because they have got a few complaints about this. I sent it back for a refund.
In the end, I decided with ordering the VTT guard and capture from FCP Euro. No lip on this design so I won't have a clearance issue. The only downside is getting it perfectly aligned while looking down from the top of the engine. If I have issues in the future, at least FCP has a lifetime warranty. I paid $170 for both.
Pics below of the Kies seal guard and clearance issues.
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(This is what happened when I tried to put a bolt on one side. It would push the other side out)
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(Sits semi-flush without bolts, but still not far enough back to prevent rub)
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