I made the pipe out of a piece of 3" stainless exhaust pipe from Autozone ($5), a couple rubber connectors for sewer pipe applications from Ace hardware (around $8), and a few little pipe connectors with rubber hose nipples on them for the crankcase ventilation hoses and IAC hoses (total of $5), a couple of rubber washers to seal them, and VIOLA! No welding required. I'll get pics when i can get pictures taken, developed and scanned.