Ballade Sports 00-05 Honda S2000 69mm Bore Intake ManifoldFits all S2000 00 05 model years. This big bore manifold helps increase air flow to the combustion chamber thus increasing horse power. Gains are approximately 10whp with 68mm throttle body and ecu tune. Ballade Sports big bore intake manifolds help update 00 05 S2000 air flow to the newer Honda factory 06 09 S2000 size intake manifold. Honda addressed this issue in the 06 09 models and increased throttle body size along with intake manifold bore