Ace Race Parts 10038 4.000 OD 14ga Round Tube - Polished OD - 6061 Aluminum - 2 Foot LengthAce Race Parts 10038 4. 000" OD 14ga Round Tube Polished OD 6061 Aluminum 2 Foot Length The Ace Race Parts line of 6061 T6 Aluminum Tubing offers fabricators of intercooler piping, intakes, and other custom components a high quality welding experience with virtually no need for surface preparation. Ace Race Parts straight lengths of aluminum tubing are offered in 2 foot lengths and feature consistent dimensions, surface finish, and material