This is the NGM Billet Tri-Flo 70mm throttle body. What is the NGM Billet Tri-Flo? It is the most innovative design in throttle bodies today. The NGM Tri-Flo was designed as three different throttle bodies in one. We have designed a throttle body that will meet the needs of both the N/A enthusiasts as well as the F/I enthusiasts. The design incorporates the ability to use two different billet sleeves that are inserted into the bore of the throttle body to tailor the airflow needs of the engine. We have designed the throttle body to give you 60mm, 65mm and 70mm options. The N/A guys might use the 60mm option while the N/A guys with cams might use the 65mm option. The supercharged guys will take advantage of the 70mm option to maximize air flow and volume under boost. The throttle body is complete plug-n-play using both the factory TPS and IAC sensors. The throttle body comes complete with a custom 70mm gasket.