T4 Top Mount Turbo Manifold Dual Twin Wastegates B-SeriesT4 Top Mount Turbo Manifold Dual Twin Wastegates B Series B16 B18 B20 EG EK DC2 T4 Top Mount Turbo Manifold with Dual Wastegates is designed to spool large turbos very quickly, producing massive midrange gains that carry to redline. This manifold is designed for any high power application, where huge power, huge torque and great spool is necessary. Fitments: 1990 to 2001 Acura Integra models with B series engines 1988 to 1991 Honda CRX models with B