Mitch's Auto Parts now offers a solution for installing the PRB style throttle body onto the RBC Style Intake Manifolds. The 62/70mm RBC adaptor has a unique press fit 7.5mm ring that allows the use of either a stock 62.5mm throttle body or a larger aftermarket 70mm unit.  If you decide to upgrade to a larger 70mm aftermarket throttle body later on, simply press out the ring and install the adapter.  This kit comes complete with hardware for both 62.5mm and 70mm throttle bodies.  If you want to go back to stock for whatever reason, press the ring back in and install your oem throttle body. 

 Features:

- Adapts the RBC/RRC manifold flange to be used with K20A/A2/A3/Z1 throttle bodies
- Designed with a removable 7.5mm ring so that you can upgrade to a 70mm throttle body at anytime
- Works with Skunk2 & BDL Performance throttle bodies
- Custom CNC machined 6061 billet aluminum
- Adapter is anodized for durability
- Complete with all hardware
- RBC/RRC gasket included