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      05-25-2011, 08:37 AM   #9
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Drives: '07 BMW 335i
Join Date: Sep 2010
Location: CT

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2007 BMW 335i  [0.00]
Originally Posted by ironman1982 View Post
Very nice as well! How difficult was it to drill the hole using a hole saw and hand drill? Did you use any braces or jigs to ensure straight drilling? I might be overthinking it as my stock airbox has been sitting in the attic in a box since I installed my DCI over a year ago so it might make more since once I look at it in more detail in person. lol
Thanks guys.

I wedged the box in a big vice and chose my center carefully. After that it's the point of no return so you just have to be confident in your location lol.

I did find having the extra airbox very helpful. I took the hole saw bit to the car and looked at various positions and how they interacted with the DVs and underhood bits. I chose a spot slightly off-center, a tad forward. Since the side of the box has a nice square grid it was easy to relocate that position on the airbox under the knife.