I need to replace the ribbed tube from my MAF to the throttle body, so I would like to replace it with a smooth piece. Does anyone know where I can order a smooth bellows as its called or if the one for the LS1 will fit my LT1?

 

Try a search for "Fernco" I think that was the name of it. The Moderator, Injuneer started using these things.

 

You can buy one from SLP for about $30. Or you can go to Home Depot (or similar hardware store) and buy a Fernco part # 1056-33 3"x3" sewer pipe connector, with 2 clamps for $5. Heat the connector in hot water, and it will slip right over the throttle body.

Fernco connector