These are factory FD Extrude Honed & Ceramic Coated Intake Manifolds.
These manifolds have been Extrude Honed & flow tested to balance airflow within 1% to each rotor.
Total airflow is also flow tested & improved by 45%.
They have also just been ceramic coated "Coolchrome" ceramic outer coating with Teflon inner coating. Coatings have been professionally applied by Calico Coatings.
$1050.00 PLUS shipping- no manifold core(s) exchange required
(normally $1165.00 plus manifold cores)