Not made by Tial. or on AIM at Mikeatawd. Actual Images of item are shown above.
Turbo Blow Off Valve Spring For TiAL 50mm BOV BV50 Alpha Q) -7/-9/-11/-12 Psi US
2 PSI Supercharger Spring for Tial 50mm Q QR QRJ BV50 BOV Blow off Valves
FAPO V Band Weld on Flange for Tial 50mm Blow Off Valve BOV QR Q Steel
Turbo Blow Off Valve Spring For TiAL 50mm BOV BV50 & Alpha Q -9 Psi / White US
SeaDoo 300 215,230,255,260, 50mm BOV 330CFM Modified to Tial 50mm Flange
For BMW N54 E88 E90 E92 135i 335i Intake Turbo Charge Pipe Kit w/Tial & 50mm Bov