Granatelli Motor Sports GMTBSRTH 105mm DBW Throttle Body Natural 6.2L Hellcat

Vehicle Fitment

• 2015-2023 Dodge Challenger SRT Hellcat, Hellcat Redeye, Super Stock, Demon, Demon 170 (6.2L Supercharged HEMI V8)
• 2015-2023 Dodge Charger SRT Hellcat, Hellcat Redeye, King Daytona (6.2L Supercharged HEMI V8)
• 2021-2023 Dodge Durango SRT Hellcat (6.2L Supercharged HEMI V8)
• 2018-2021 Jeep Grand Cherokee Trackhawk (6.2L Supercharged HEMI V8)
• 2021-2023 RAM 1500 TRX (6.2L Supercharged HEMI V8)

Fitment Notes

• Designed as a direct, plug-and-play replacement for the factory throttle body - no parts transfer from the OEM unit is required.
• Compatible with all factory and aftermarket intake manifolds. An adapter sleeve may be required on some intake configurations to mate the 105mm throttle body to the intake inlet - not included.
• A tune is recommended for heavily modified vehicles but is not required for bolt-on or stock applications.
• Fits all 6.2L supercharged HEMI V8 applications sharing the same drive-by-wire throttle body interface across Dodge, Jeep, and RAM platforms.
• This is the natural/silver finish version. The black anodized version is available as part number GMTBSRTHB.

Features

• 105mm bore diameter significantly outflows the OEM factory throttle body, delivering a dramatic increase in mass airflow across all RPM ranges for maximum horsepower potential.
• CNC-machined from 6061-T6 billet aluminum - providing a rigid, heat-resistant, and corrosion-resistant housing that exceeds the structural and thermal demands of supercharged HEMI applications.
• Reinforced electric motor is engineered to withstand up to 25 lbs of boost pressure in both draw-through and blow-through boost configurations - preventing throttle blade deflection or forced closure under high-boost conditions where factory motors are known to fail.
• Unique GMS throttle blade design works in concert with the heavy-duty electric motor to maintain precise throttle position control at elevated boost levels - ensuring throttle response remains consistent and linear regardless of boost pressure.
• Allows for smoother and quicker engine acceleration compared to the factory unit, improving transient throttle response for both street driving and strip launches.
• Natural billet aluminum finish provides a premium, show-quality engine bay appearance while resisting corrosion and heat discoloration in the demanding supercharger inlet environment.
• Direct bolt-on replacement with no ECU coding, no programming, and no transfer of components from the factory unit - installation is achievable in approximately 30 minutes.
• Compatible with all factory and aftermarket intake systems - not limited to specific intake brands or configurations.
• Backed by a 1-year limited manufacturer warranty from Granatelli Motor Sports against manufacturer defects.

Specifications

• Part Number: GMTBSRTH
• Brand: Granatelli Motor Sports
• Type: Drive-By-Wire (DBW) Billet Throttle Body
• Bore Diameter: 105mm
• Application: 6.2L Supercharged HEMI V8 - Dodge Hellcat / Jeep Trackhawk / RAM TRX platforms
• Material: 6061-T6 CNC-machined billet aluminum
• Finish: Natural (silver/raw aluminum)
• Boost Capacity: Up to 25 lbs (draw-through and blow-through)
• Installation: Direct OEM replacement, plug-and-play
• Tune Required: Recommended for heavily modified vehicles; not required for bolt-on applications
• Installation Time: ~30 minutes
• Weight: 6.0 lbs
• Warranty: 1-year limited manufacturer warranty

Included Components

• 1x Granatelli Motor Sports 105mm Drive-By-Wire Throttle Body - Natural (GMTBSRTH)
• 1x Throttle Body Spacer
• 2x Gaskets

Product Description

The Granatelli Motor Sports GMTBSRTH is a 105mm drive-by-wire billet throttle body engineered for the 6.2L supercharged HEMI V8 platform - covering the full range of Dodge Hellcat, Jeep Trackhawk, and RAM TRX applications from 2015 onward. CNC-machined from 6061-T6 billet aluminum, the GMTBSRTH replaces the factory throttle body as a direct, plug-and-play unit requiring no ECU programming, no component transfers from the OEM unit, and no professional installation equipment. The 105mm bore delivers a dramatic increase in mass airflow versus the factory throttle body, providing the intake volume needed to support high-horsepower builds at all RPM ranges - from idle through peak power.

A core engineering challenge with the 6.2L supercharged HEMI platform is throttle body behavior under elevated boost pressure. Factory throttle body motors can be overwhelmed under high-boost conditions, causing throttle blade deflection or forced closure events that interrupt power delivery. The GMTBSRTH addresses this directly with a heavy-duty electric motor rated to maintain precise blade control at up to 25 lbs of boost in both draw-through and blow-through configurations - the same boost levels encountered by the most aggressively modified Hellcat and Trackhawk builds. Granatelli's proprietary throttle blade geometry works with the reinforced motor to ensure consistent, linear throttle response under boost that the OEM unit cannot reliably replicate. The result is smoother, quicker engine acceleration across the entire operating range, with improved transient response for both street driving and competition use.

The natural billet aluminum finish provides a clean, premium appearance in the engine bay while resisting corrosion and surface degradation in the heat-intensive supercharger inlet environment. This is the natural finish version; the GMTBSRTHB is available for those preferring a black anodized finish. Each kit ships with the throttle body, one spacer, and two gaskets - all hardware needed for installation. A tune is recommended on heavily modified vehicles to fully optimize airflow and fueling calibration, though it is not required for bolt-on applications. Installation is rated at approximately 30 minutes and requires only basic hand tools. Backed by a 1-year limited manufacturer warranty, the GMTBSRTH is the benchmark billet throttle body upgrade for the 6.2L supercharged HEMI platform.