K Series Billet Intake Manifold K20 K24 K Swap EG EK DC CRX Civic TSX Si TB 72mmK Series Billet Intake Manifold K20 K24 K Swap EG EK DC CRX Civic TSX Si US Fitment: Fits K20 & K24 Engines Made from CNC Machined T6061 Billet Aluminum Features Longer Runners, Larger Plenum, & Tapered Runners VS Stock Intake Manifold Includes 72mm Throttle Body Features a 2 piece modular design that allows for easy disassembly, porting, and plenum volume changes through the use of a removable plenum lid and optional plenum spacers. Ideal for RHD LHD