Circuit Sports billet aluminum oil cooler adapter for your high performance motor,
It is designed for vehicle not planned or equipped with a remote oil filter relocation setup. 
A straight bolt-on design it can be uses with any -10AN fitting oil cooler kit.
It comes with 2 different oil housing center fitting, M20 & 3/4-16UNF.
2 X 1/8 NPT side ports for oil temp/pressure sensor insert (Include 2 end caps to block off sensor ports).
2 X -10AN outlet port for easy oil cooler hook up,

Make it a Kit:

Oil Cooler Core + Oil Cooler Line + Oil Filter Adapter

Note:
S13 SR20DET uses 3/4-16UNF
S14/15 SR20DET uses M20 x 1.5
For other motors, please verify your filter adapter thread pitch before purchase.