I was just wondering if anyone has fabricated a downpipe for this style exhaust outlet? i have a 3 bolt flange but the two do not sit flat on eachother making a seat for the gasket. Obvioulsy when volvo put this on their vehicles they had some sort of gasket or a flange that fits this outlet. anyone have ideas? tips? should i just flair a piece of pipe out at the end and make a gasket? **its the turbo on the left**