Engine & Power · Buyer's Guide
Throttle Bodies
The throttle body is the butterfly valve between your air intake and engine — it controls how much air gets in when you press the gas pedal. A larger throttle body removes a restriction in the air path. The gains are small on their own but compound with other intake mods.
Recommended Picks
A starting point for your build, sorted by budget.
All Throttle Bodies (9)
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Mopar 92mm Throttle Body$355.78
aFe Power Afe Power 80mm Throttle Body+13 HP$373.50
AFE 80mm Billet Throttle Body$373.50
aFe Power aFe Power 90mm Throttle Body Tune required$469.80
BBK Performance 90mm Cnc Throttle Body$549.99
BBK Performance 87mm CNC Ported Throttle Body+10 HP$571.99
BBK BBK 92mm Throttle Body$599.99
Granatelli Motor Sports 95mm Throttle Body Tune required$648.38- Granatelli Motor Sports 95mm Throttle Body Tune required$648.38
6. THROTTLE BODIES
What It Does
The throttle body controls airflow into the intake manifold. Upgrading from the stock unit allows more air to flow at wide-open-throttle, marginally increasing peak power. More importantly, it can improve throttle response.
Sizing by Engine
| Engine | Stock TB Size | Upgrade Size | HP Gain |
|---|---|---|---|
| 5.7L R/T | 80mm | 85–90mm | +8–12 HP |
| 6.4L Scat Pack | 87mm | 92–95mm | +8–12 HP |
| 6.2L Hellcat | 92mm | 95mm+ | +5–8 HP |
Key Brands
- BBK Performance: 87mm CNC ported TB — best known in this space. Plug-and-play.
- Mopar: OEM+ option from Dodge Performance Parts.
- Modern Muscle Performance: Direct-fit, CNC machined.
- aFe Power: 90mm and 80mm options with plug-and-play installation.
Notes
- TB upgrade gains are modest standalone but compound with CAI + tune.
- Diminishing returns on very large TBs if intake manifold is stock.