RCM Turbosmart Internal Wastegate Actuator Intake Manifold Rim Depth for 20 inch:

Rim Depth for 20 inch: STD 43

and the finished product is just that

our high performance intercooler is the right choice

Samco turbo intake hoses really are the best in the business

for Honda K and B series engines is the ultimate manifold for high-horsepower street and race engines

RCM Turbosmart Internal Wastegate Actuator Intake Manifold Rim Depth for 20 inch:The Turbosmart Internal Wastegate Actuator is the perfect upgrade for your RCM Precision Subaru turbo, delivering sharper boost response, improved stability, and long term reliability. Designed to thrive under the extreme demands of high performance Subaru engines, it ensures your turbo operates exactly as intended every time. Key Features Direct fit for RCM Precision Subaru turbochargers CNC machined billet aluminium construction for maximum strength