If you're looking to squeeze every last bit of horsepower out of your Mopar, a hellcat ported snout is probably one of the smartest upgrades you can make right now. It's one of those modifications that bridges the gap between a basic "bolt-on" car and a serious track beast. Anyone who's spent ten minutes in the Hellcat community knows that these cars are basically giant air pumps. The more air you can shove into that supercharger—and the faster you can do it—the more power you're going to make. But the stock snout, while impressive from the factory, has some room for improvement if you're chasing big numbers.
Why the Stock Snout Holds You Back
When Dodge designed the 6.2L HEMI, they had to balance performance with mass production. That means the internal casting of the supercharger snout isn't exactly "perfect." If you were to take yours off and look inside, you'd see rough surfaces, casting flashes, and some sharp angles that don't exactly help with airflow. It's not that the stock design is bad—it's actually great for 707 horsepower—but once you start spinning that blower faster with a smaller pulley, those tiny imperfections start to matter a lot more.
A hellcat ported snout fixes those bottlenecks. By smoothing out the transitions and opening up the "neck" of the supercharger, you're reducing the restriction the air faces before it even hits the rotors. Think of it like trying to breathe through a coffee stirrer versus a boba straw. The less effort the supercharger has to exert to pull air in, the more efficient the whole system becomes.
The Difference Between Porting and Just Polishing
I see a lot of guys getting confused about what porting actually entails. It's not just taking a piece of sandpaper and making the inside look shiny. Real porting involves removing specific amounts of material from key areas to improve the volume and velocity of the air. When a professional shop works on a hellcat ported snout, they're often using CNC machines to ensure the geometry is perfect.
They focus on the inlet where the throttle body bolts up and the path leading down toward the rotors. They also tend to work on the bearing plate, which is often a major point of turbulence. If you just "polish" it, you're making it look pretty, but you aren't necessarily changing the airflow characteristics. A true port job is about reshaped geometry, not just a mirror finish.
Matching the Snout to a Bigger Throttle Body
If you're going through the trouble of installing a hellcat ported snout, you really shouldn't be sticking with the stock throttle body. That's like putting a high-flow exhaust on a car but leaving the potato in the tailpipe. Most people who go the ported route are moving up to a 95mm, 105mm, or even a 108mm throttle body.
When you port the snout, the porter will usually "match" the opening to whatever throttle body you plan on running. This creates a seamless transition. Without this matching, you get a "lip" where the air hits a flat wall as it moves from the throttle body into the snout. That creates turbulence, and turbulence is the enemy of boost. By opening that mouth up to 108mm, you're allowing a massive volume of air to enter the blower with almost zero resistance.
Boost, Heat, and Efficiency
One of the coolest things about a hellcat ported snout—and something people don't talk about enough—is how it affects heat. We all know the Hellcat's biggest enemy is heat soak. When you make a supercharger work harder to suck in air, it generates more heat. By making the intake path more efficient, the blower doesn't have to work quite as hard to reach the same boost levels.
In some cases, you might actually see a slight drop in boost pressure on the gauge after installing a ported snout, even though the car is making more power. Don't freak out if that happens. Boost is just a measure of restriction. If you're making the same power (or more) with less "boost" on the gauge, it means your engine is breathing better and the air is moving more freely. Lower boost with higher airflow usually means lower intake air temperatures (IATs), which is a huge win for consistency at the drag strip.
Is It a DIY Project?
I'll be honest with you: unless you have a background in head porting and a very steady hand with a die grinder, this isn't something you want to do in your garage on a Saturday afternoon. The tolerances inside a Hellcat blower are tight. If you nick a bearing surface or remove too much material in the wrong spot, you're looking at a very expensive paperweight.
Most guys send their blowers off to specialized shops. You've probably heard names like Jokerz Performance or Kong Performance thrown around. These guys have the process down to a science. They know exactly how much material can be removed without compromising the structural integrity of the snout. Plus, they can rebuild your bearings while they're in there, which is always a good idea if you've got some miles on the clock.
What Kind of Gains Should You Expect?
This is the million-dollar question. If you put a hellcat ported snout on an otherwise stock car, you might see 15 to 20 horsepower. It's okay, but it's not exactly "push you back in your seat" territory. However, when you combine a ported snout with a 2.75 or 2.85 upper pulley, a set of injectors, and an E85 tune, the gains are massive.
In a high-horsepower setup, the ported snout can be worth 30 to 50 wheel horsepower because it's no longer the "choke point" of the system. It allows all your other mods to actually do their jobs. It's the supporting mod that makes the "big" mods worth the investment. It's also worth noting that the "throttle response" feels a lot snappier. The car just feels more eager to get up and go because the airflow is instantaneous.
The Cost Factor
Let's talk money for a second. Getting a hellcat ported snout isn't exactly cheap, especially if you go for a full CNC program. You're usually looking at anywhere from $500 to $1,500 depending on the level of work and whether or not you're getting the bearing plate done too.
When you compare that to the cost of a whole new aftermarket supercharger—like a Whipple or a Magnuson—it's actually a bargain. For a fraction of the price of a blower swap, you can push the factory IHI supercharger much further than most people think is possible. For a lot of owners, porting the stock blower is the "sweet spot" of performance and value.
Final Thoughts on the Ported Snout
At the end of the day, upgrading to a hellcat ported snout is about maximizing what you already have. It's a refined way to build power without losing the character of the factory car. It keeps the engine bay looking relatively stock (unless you go for a custom powder-coated finish), but it provides the airflow needed to run with the big boys.
If you're already planning on doing a pulley swap and a tune, you might as well pull the snout and send it off. It's one of those "while you're in there" jobs that you'll definitely regret skipping later on when you're looking for that last tenth of a second at the track. It makes the car more efficient, more responsive, and a whole lot faster. And really, isn't that why we bought a Hellcat in the first place? Just make sure you've got the tires to handle the extra grunt, because once that air starts flowing, those rear 305s aren't going to stand a chance.