09/08/2026
🚨Hybrid Racing PRB Coolant Port Adapters🚨
NEW & INSTOCK!
The factory coolant outlet on a K-Series head is a cluttered piece of hardware, and it drags the idle air assist valve along with it. This adapter replaces the whole arrangement with one compact billet housing that cleans up the back of your motor, deletes the idle air assist valve, and gives you a proper -16 ORB outlet to plumb however you want. It’s machined from a single piece of 6061 and finished in black anodize, and it’s the kind of part that makes a bay look sorted instead of stock.
