Action Clutch Stage 2 Clutch Kit (06-11 Civic Si) Wiseco 5mm Viton valve stem seals

5mm Viton valve stem seals deliver OEM-equivalent performance for Honda intake applications

This meant that the engine swap was more or less irreversible

and naturally aspirated applications

so you will not need to buy any other parts

SpeedFactory Magnetic Drain Plug - M14x1

Action Clutch Stage 2 Clutch Kit (06-11 Civic Si) Wiseco 5mm Viton valve stem sealsAction Clutch's lightweight flywheel engineered to deliver measurable performance gains through reduced rotational mass. The aluminum construction cuts weight enabling faster engine response, quicker acceleration, and improved throttle modulation. This upgrade minimizes drivetrain inertia for sharper shifts and enhanced rev matching capability. Ideal for drivers seeking responsive handling without sacrificing reliability or drivability in daily