The newly released Synapse Turbo Manifold utilizes the exhaust footprint for a T3 inlet turbo. The 1.75" exhaust runners allows for free-flowing exhaust gasses and allows for high end power. These manifolds are hand welded and fabricated here in the USA. They fit RWD SR20DET S13 and S14 motors in the S13/S14 chassis. Your choice of either a 38mm 2 bolt style or 44mm v-band style wastegate flanges are offered. Please select your wastegate type when ordering.