Spraying coats of anything like this has two important techniques. One (most importantly) - you're only putting down a slightly thicker than over-spray layer of paint. Your putting as thin a coat of paint on but still covering the entire surface. Two - laying and layering the paint. You want to go halfway up on each pass over the next. Make one pass, then make your next pass halfway up the last.
Snorkel Delete / K&N E2993