DETROIT 12V149T 9123-7300etc. Includes:

2 x Manifold Lb. fwd., Rb. Aft.
2 x Manifold Rb. fwd., Lb. Aft.
2 x Adaptor Lb. fwd., Rb. Aft.
2 x Adaptor Rb. fwd., Lb. Aft.
4 x Turbo
2 x Turbo "Y"