PHR - Powerhouse Racing -12AN Breather Lines for MKIV Supra

PHR's breather lines for the 2JZ Engine are the largest in the market. Our years of experience have shown that using large -12 breather lines provides superior ventilation, reducing crankcase pressure and preventing blow-by. This ensures optimal engine performance and longevity, making PHR's breather tank kits the top choice for serious enthusiasts and professional racers alike.

Adapting to the Valve Covers

No matter if you're running OEM our a set of our Billet Valve Covers, we have a way for you to adapt a -12AN fitting. Let PHR help your engine BREATHE!

 -12AN Weld Bung

For OEM 2JZ-GTE Valve Covers. These can be welded directly to 2JZ-GTE Valve covers. We don't recommend these for the 2JZ-GE.

-12AN Press-In, Exhaust

For OEM 2JZ-GTE or OEM 2JZ-GE Valve Covers. Simply pull existing nipple on the exhaust side. Press this fitting in place.

-12AN Press-In, Intake

For OEM 2JZ-GTE or OEM 2JZ-GE Valve Covers. Simply pull the PCV and Grommet from the intake side. Press this fitting in place.

-12AN PCV Grommet

For OEM 2JZ-GTE or OEM 2JZ-GE Valve Covers. On the intake side, if you have a grommet style PCV, simply remove the PCV, and push this in.

-12AN Threaded PCV

For OEM 2JZ-GE Valve Covers. On the intake side, if you have a threaded style PCV, simply remove the PCV. Thread this in place

-10ORB to -12AN Fitting

For PHR Billet Valve Covers. These thread into the PHR Vertical Breather Adapters which bolt onto the valve covers

-20ORB to -12AN Fitting

For PHR Rigid Ultralight Valve Covers. These thread into the large ports on the rear of the valve covers.