Thread: BMD DCI install
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      03-08-2013, 10:57 AM   #9
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Quote:
Originally Posted by 135Pats View Post
Ditch the cowl (leave hvac filter on) and just ziptie the lines together, or if you don't mind it looking a bit messier you can just leave them hanging over the engine cover. I'm convinced the cowl exists to make it impossible to reach the rear intake inlet tubing. Unless you really like the extra plastic, or hate the injector ticking noise, I see no reason to leave that stupid cowl on. My 2c.
It's purpose is mainly water drainage. It directs water off the windshield towards the gutters on each side of the cowl.