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.
Grams Performance DBW Electronic 72mm Throttle Body 2012+ Scion FR-S / Subaru BRZ
Drive-By-Wire Electronic Throttle Body
Grams Performance Throttle Body
13+FRS/BRZ/FT86 Throttle Body
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