BD Diesel • 6.7L Cummins

6.7L Screamer Turbos: Quicker Spool, Cooler EGTs, Work-Ready Manners

Drop-in, 50‑state‑legal VGT upgrades that feel stock when you need them and stronger when it counts—built for towing, daily, and mixed‑use Rams.

Ram’s variable‑geometry turbo (VGT) is the secret to low‑rpm torque and the factory exhaust‑brake control that makes long grades feel easy. After years of heat cycles and soot, response fades, EGTs creep up, and the brake gets mushy. That’s the moment a drop‑in upgrade makes sense. A BD Screamer keeps the stock‑style VGT (and all its tow manners), but its aero package—64.5 mm 7+7 billet compressor and a QST 70 mm 12‑blade turbine with about 15% lower moment of inertia—wakes the truck up everywhere without giving up emissions compliance.

What Exactly Is a Screamer VGT?

It’s a stock‑appearing, stock‑location replacement that keeps your factory controls and exhaust brake intact. The difference is inside: tighter, stronger aero and careful balancing deliver quicker spool and lower drive pressure so you hold speed with less throttle—and keep EGTs in check when the trailer is on.

• Billet 64.5 mm compressor for efficient flow and cool charge temps.
• QST 70 mm 12‑blade turbine with ~15% lower MOI for faster transient response.
• Actuator calibrated and VSR high‑speed balanced before it ships.
• 50‑state legal (see product page for CARB EO; ’19–’24 Screamer EO: D‑553‑14).

OEM vs. Screamer: Feel the Differences

Inside the Build: How BD Gets the Response

The Screamer’s wheel set is where most of the magic happens—more flow without extra lag. But durability is the other half of the story. BD blueprints every unit, calibrates the electronic actuator, and VSR balances the rotating assembly to OEM‑grade standards. The result is a turbo that feels stock in manners, with the headroom you want for towing and mild performance.

Emissions, EO Numbers & Real‑World Use

Screamer turbos retain factory emissions equipment and do not require tuning. For 2019–2024 trucks, the Screamer carries CARB EO D‑553‑14. Earlier generations are listed 50‑state legal; always check the specific product page for the EO and your year. If you’re in a smog‑check state, this is the simplest way to restore response without compliance headaches.

Choose Your Screamer

• ’07.5–’18: Screamer HE300VG (2007.5–2018) — supports mods up to ~690 HP with proper fueling/air; actuator calibrated, VSR balanced.
• ’19–’24: Screamer HE300VG (2019–2024) — CARB EO D‑553‑14; includes BD’s HE300 mounting kit for a smooth install.
• Bundle It: For the best drive pressure and EGT control, pair with BD’s pulse‑divided manifold packages (’13–’18 • ’19–’24).

Shop‑Floor Perspective: Why These Feel Better

The trucks that come through our doors with tired HE300s share a pattern: a hint of surge near lockup, a softer brake on the downhill, and that split second of lag re‑merging into traffic. On the road with a Screamer, that hesitation is gone; the vane control stays precise, and the turbine’s lower inertia lets the engine catch speed without a kickdown. The net effect is simple: you use your right foot less to do the same work.

Simple Supporting Mods (Big Payoff)

• EGT Monitoring: Manifold packages are pre‑drilled for a pyrometer. Watching EGTs keeps pistons safe on long grades.
• Transmission Health: If your 68RFE shows lockup shudder, fix cooler flow with the Thermostat Bypass and consider the Stock‑Plus 68RFE Package.
• Charge‑Air Leaks: Old boots/clamps can make a fresh turbo feel lazy. Replace them at install time.

Install Time, Warranty & What to Expect

• Install Time: ~6 hours 36 minutes for the turbo; add time for manifold packages.
• Warranty: Screamer turbos include 24‑month parts coverage.
• Compliance: 50‑state legal; see each product page for EO details. ’19–’24 Screamer EO: D‑553‑14.

FAQ

Do I need tuning?
No. Screamers are designed to run on stock calibration. Mild tuning and healthy fuel supply can help you reach the upper power support range.

Will the exhaust brake still work?
Yes—the VGT architecture and control strategy remain intact.

How much power will it support?
With appropriate fueling and airflow, up to ~690 HP. For work trucks, prioritize EGT control and transmission health over peak dyno numbers.

*Limited‑time Extend® inclusion applies to Screamer turbo purchases during the active promotion window; availability and terms may vary by region and seller. See product page or contact BD for current details.