Ace Race Parts 52008 1-1/4 Schedule 40 Tee 304 StainlessAce Race Parts 52008 1 1 4" Schedule 40 Tee 304 Stainless The Fabricator's Choice for Turbo Log Manifold Builds! The Ace Race Parts brand of Schedule 40 1 1 4" pipe size Tees have a thicker wall thickness and a smaller ID than comparable Schedule 10 Elbows and are the perfect solution for small and large turbo manifold applications. Ace Race Parts stainless tee fittings can withstand the punishment, vibration, and heat of a high horsepower street,