• Granatelli 108mm black billet throttle body GMTBSRT108B for Hellcat and Trackhawk
  • Granatelli GMTBSRT108B black throttle body built to handle 25 psi of boost
  • Granatelli GMTBSRT108B 108mm throttle body for quicker 60-foot times and sharper throttle response
  • Granatelli GMTBSRT108B throttle body for the 2018-2021 Jeep Grand Cherokee Trackhawk 6.2L supercharged
  • Granatelli GMTBSRT108B black throttle body CNC-machined from 6061-T6 billet aluminum
  • Granatelli 105mm and 108mm billet throttle bodies for supercharged Hellcat and Trackhawk engines
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Granatelli Motor Sports

Granatelli Hellcat Trackhawk Drive-By-Wire Billet Throttle Body – GMTBSRT108B

Granatelli Hellcat Trackhawk Drive-By-Wire Billet Throttle Body – GMTBSRT108B

SKU:GMTBSRT108B

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Granatelli 108 mm DBW Billet Throttle Body (Hellcat / Trackhawk)

SKU: GMTBSRT108B

NO TUNE REQUIRED

Unleash the full potential of your supercharged HEMI. Whether you're chasing quicker 60-foot times, sharper throttle response, or simply want your engine to breathe as it should, the Granatelli 108 mm Billet Throttle Body delivers uncompromising performance and bulletproof reliability. Built for enthusiasts who demand more from their build, this throttle body is the upgrade your setup’s been begging for.

Key Features & Benefits

  • If the 108 mm bore is too big for your setup, we also make a 105 mm version: Granatelli 105 mm Hellcat throttle body (GMTBSRTHB).
  • Boost-resistant motor: Engineered to handle 25 psi+ of boost without throttle blade deflection or shutdown—ideal for turbocharged and supercharged applications.
  • 6061-T6 CNC-machined billet aluminum: Lightweight, heat-resistant, and tough as nails.
  • Plug-and-play fitment: Works with aftermarket intakes (does not fit the factory intake). Some setups may require a sleeve (not included).
  • Sharper throttle response: Smoother power delivery, faster acceleration, and immediate pedal feedback—especially under wide-open throttle.

Fitment

  • Fits: 2015–2023 Dodge Challenger (including Redeye) – 6.2L Supercharged Hellcat V8
  • Fits: 2015–2023 Dodge Charger (including Redeye) – 6.2L Supercharged Hellcat V8
  • Fits: 2021–2024 Dodge Durango – 6.2L Supercharged Hellcat V8
  • Fits: 2018–2021 Jeep Grand Cherokee (Trackhawk) – 6.2L Supercharged Hellcat V8
  • Fits: 2021–2024 Ram 1500 (TRX) – 6.2L Supercharged Hellcat V8
  • Compatible with aftermarket intakes; not the factory intake

NO TUNE REQUIRED. This Dodge/Mopar Hellcat throttle body bolts on with no tune.

If you're done playing with factory restrictions and want real, dyno-proven performance, this is your next step. The Granatelli Billet Throttle Body isn’t just a bolt-on—it’s a bolt-ahead. Bolted on with no tune required, it unlocks serious horsepower gains, improved drivability, and that extra edge at the strip or on the street.

Quick Answers: GMTBSRT108B Hellcat Throttle Body

Does it fit the factory intake manifold?
No. The 108mm GMTBSRT108B does not fit the factory intake manifold. For the factory intake, choose the 105mm GMTBSRTHB (silicone sleeve recommended).

Which engines does it fit?
Hellcat, Redeye, Trackhawk and TRX. It does not fit the Demon. Granatelli Hellcat throttle bodies do not fit non-Hellcat HEMI engines (5.7L, 6.4L/392); those use Granatelli's 95mm HEMI throttle bodies.