CTS TURBO 1.8T TURBO MANIFOLD T3 FLANGE (TRANSVERSE)The CTS Turbo Top mount exhaust manifold for the VW Audi 1. 8T 20V engine is designed for use with T3 flanged turbochargers and 38mm or 39mm wastegates. The top mount design allows for very easy installation into VW MK4, MK3, MK2, Audi TT225, TT180HP, S3, along with various Seat and Skoda 1. 8T models, the semi equal length design was used to optimize peak power and retain good spool characteristics. Our manifold is manufactured with the highest grade