ISR Performance Turbo Oil Restrictor

ISR Performance oil restrictor 

Oil Restrictor for use with ISR ball bearing turbos oil. 

**NOT FOR USE WITH ISR JOURNAL BEARING TURBOS** (IS-RS3871 & IS-RST25/28)

Specifications: 

• .036" restrictor
• 7/16-24 thread
• -3an male 

Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.