Speed Factory Racing Top Mount Turbo Manifold for Honda - Acura B Series (B16 B18 B20) Engines

The Speed Factory Racing B-Series Top Mount Turbo Manifold was designed to spool larger turbos very quickly, producing broad powerbands that carry to the top of the RPM range. This manifold is for high power applications where large torque and great spool are necessary alongside big top-end horsepower, making it suitable for drag race vehicles.

Our Top Mount is constructed from high quality 1.5” Schedule 40 stainless steel, and is TIG-Welded and back purged to ensure that you are receiving the highest quality product possible. Our cylinder head, wastegate, and turbine inlet flanges are CNC machined from ½” plate 1018 Steel and all mating surfaces are machined flat ensuring a perfect seal.

The Speed Factory Racing B-Series Top Mount Turbo Manifold is available in the following configurations:

-T3 Open turbine inlet flange with single 44-46mm VBand wastegate flange

-T4 Open turbine inlet flange with single 44-46mm VBand wastegate flange

-T4 Divided turbine inlet flange with dual 44-46mm VBand wastegate flanges