This is the OLD GREDDY RS STYLE BOV with all hardware and BOV adapter flange for 38mm BOV's.

Blow-Off Valve:•CNC machined billet aluminum material
•Hold up to 30 PSI boost
•Aggressive JDM discharge sound
•Anodized Finish

Flange Pipe:
•Made of high quality light weight T-6061 aluminum
•Fits Type-S or Type-RS dump pipe flange
•Construction prevents Warping due To high heat
•2.5" pipe size

100% brand new, never been tried or installed 
No instructions included, professional installer is highly recommended

Application:
•Universally fits most turbos using a Type-S, Type-R, Type-RS or Type-RZ blow-off valve