Mugen tuned pipe is the one piece variety and requires an off-road manifold, which attaches to the tuned pipe using three small springs and a manifold gasket (included). This pipe is designed for all around performance, specifically with the Ninja JX21 B01 engine.

This is only the tuned pipe, and does not include a manifold which must be purchased separately. This pipe is made available as a separate item so you can choose either the C-type or L-type manifold, depending on whether you want better top or bottom end performance.