A larger throttle body is key to producing additional power throughout the power band on modified engines with increased airflow demands. The new Grams Performance and Design MKIV throttle body features a large 70mm bore, which results in significant horsepower gains throughout the power band on heavily modified, naturally aspirated applications and even more on forced induction ones.
Drive-By-Wire Electronic Throttle Body; Bore Size 72mm ID; Incl. Spacers/Plug And Play Harness Adapter/Hardware;
Grams Performance DBW Electronic 72mm Throttle Body 2012+ Scion FR-S / Subaru BRZ
50 Percent Increase In Airflow Over Stock 64mm Body
Factory Programmable Non-Contact Hall Effect TPS
CNC Machined Billet 6061-T6 Aluminum Housing
Drive-By-Wire Electronic Throttle Body
Precision Honed Oversized 72mm Bore
Wiring Harness Adapter Included
Optimized TPS Response Curve
High Precision Servo Motor
Aluminum Throttle Plate
TBdyAssy