TEGIWA EXHAUST MANIFOLD HEADER CIVIC INTEGRA B-SERIES DC2 EG6 EK9 exterior Alpha Valve Springs are able

Alpha Valve Springs are able to prevent valve float and maintain valvetrain stability at engine speeds in excess of 10

gun drilled and CNC direct shot oil holes are what sets it apart from the other aftermarket or OEM crankshafts

Twin internal fan for optimum cooling

This manifold is for applications where large torque and great spool are necessary alongside big top-end horsepower

Specs:ALL NEW 8620 Billet Material

TEGIWA EXHAUST MANIFOLD HEADER CIVIC INTEGRA B-SERIES DC2 EG6 EK9 exterior Alpha Valve Springs are ableTEGIWA Race Exhaust Manifold. Constructed from 304 grade Stainless steel. These headers feature the popular 4 2 1 design with a true 2. 5" collector, CNC mill cut flanges, and robotic rotation purge TIG welding. Being a 4 2 1 configuration means it has excellent clearance and ultimately your header wont get beat up on speed bumps. It has been proven as being one of the best 'off the shelf' headers available. We dyno'd it back to back against an OEM