Exoracing An04 Turbo Oil Feed Restrictor Flange 0.9mm

A turbo oil feed restrictor flange with a 0.9mm/0.035" restrictor, CNC machined from 6061 billet aluminium. It carries a male thread for AN04 female oil feed lines and uses universal 37mm hole spacing. Supplied with a gasket and two cap head bolts, the full kit weighs 44g.

• Restrictor size is 0.9mm/0.035". Exoracing states that this size is for engines with higher oil pressure, with ball-bearing turbos typically wanting 40-45psi at the turbo depending on the unit.
• CNC machined from 6061 billet aluminium, with a 53mm length, 21mm height and an 8mm base to check against the space around your turbo.
• Male AN04 thread, so it is used with a compatible AN04 female oil feed line.
• Kit contains one restrictor flange, one 1mm gasket paper turbo oil feed flange gasket and two M8x20x1.25 steel cap head bolts, weighing 44g in total.
• Exoracing says using an oil restrictor prevents oil leaks and enhances boost response by minimising oil windage in the bearing.

Check before you order

• Buyers should ensure correct fitment before ordering.
• If installed incorrectly, or to a turbocharger that does not need a restrictor, turbo failure can be caused.

Specifications from Exoracing

Fitting notes from Exoracing

• Installation: Professional installation is always recommended.
• Bolt torque: Screw in the M8 bolts and torque to factory specification.
• Retorque after heat cycles: Run the car through a few heat cycles, then retorque the bolts.
• Priming: On a first turbocharger installation, prime the system before starting the car to ensure sufficient oil is inside.

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