This is the O.S. T-2060SC WN polished one piece tuned pipe (no manifold). This is the one piece variety and requires an off-road manifold, which attaches to the tuned pipe using three small springs (not included). This pipe is designed specifically for O.S. engines, such as the O.S V-Spec engines, and will provide excellent bottom end and top end performance. This pipe also features a welded nipple so you won't have to worry about losing back pressure due to an air leak.
This is only the tuned pipe, and does not include a manifold which must be purchased separately. This package does include a manifold gasket and three retaining springs.