Ported and polished AUDI VW SEAT 1.9 TDI head. This listing is for both 1.9TDI and 1.9TDI PD engine heads, You mast specify when order! Professionally ported head for street or race applications, suitable for high power projects. Each head is flow tested on Flowbench, customer will be provided with exact CFM numbers based on valve lift. Ported, corrected, enlarged and polished inlet ports. Intake port is increased in all its lengths, all unnecessary sharp corners and casts have been smoothened out to give the intake port better shape, matched intake near the intake flange. A special attention have been made to intake runner swirl pot which have less aggressive…