how high can you go...

just had an intelligent discussion with my buddy rene; how high can I go...
I had in mind, something like 3 meters for my exhaust....rene was laughing for 5 straight minutes...
than he asked me a question: did you thought about the height of your garage door....

uhhh, that little thing slipped my mind.....



found the pic somewhere on the www...super cool pic!!!