4P BILLET CNC Race Head Honda (S2000) 5mm intake runners with smooth

5mm intake runners with smooth transitions allowing the Ultra Series Street Intake Manifold to outflow the competition

The guides are made from a space-age composite material that is stronger than aluminum

and adjustable cam gears

Longer valve and seat lifeProper contact patterns reduce hot spots and wear

throttle response

4P BILLET CNC Race Head Honda (S2000) 5mm intake runners with smoothUpdate 11 9 21 The 4P Billet CNC Race Head is the ultimate for those wanting to push the limits of cylinder pressure and horsepower levels. If you are wanting to push power approaching or exceeding 2000hp, this is something you need to consider for its strength and rigidity. We offer this head DRY and with water passages. Please consider that you may want to run this completely dry in an alcohol engine at power levels listed above or with very high