Ace Race Parts 50012 1-1/2 Schedule 10 Seamless Pipe 304L Stainless - 4 Foot LengthAce Race Parts 50012 1 1 2" Schedule 10 Seamless Pipe 304L Stainless 4 Foot Length The Fabricator's Choice for Building Turbo Manifolds & Merge Collectors! The Ace Race Parts brand of Schedule 10 304 Stainless Steel Pipe is the perfect match for Ace Race Parts Stainless Weld Els for fabricating turbo manifolds. Ace Race Parts 1 1 2" schedule 10 pipe can withstand the punishment, vibration, and heat of a high horsepower street, drag, or track car.