STM Water Pump Bypass with -16ORB for Evo 8/9 (EVO89-WPB) Venturi Simply and accurately check the

Simply and accurately check the percentage of ethanol content in your E85 fuel with the Holley E85 Checker

• T430 Stainless Steel

• The pads are quiet

5 STM Standard Rotor 9

STM Water Pump Bypass with -16ORB for Evo 8/9 (EVO89-WPB) Venturi Simply and accurately check theThe billet STM Evo 8 9 water pump bypass plate features a 16 ORB outlet. It was designed by the STM team and used in several STM race cars over the years when installing an electric water pump for various reasons. In most cases, when it comes to high reving Evos, the water pumps tend to fail. Using this plate in conjunction with an electric pump removes one more failure points, allowing you to choose water flow rotation and gain control over water