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Uncage the Demon: Why Your Redeye is Choking
You didn’t buy a Hellcat Redeye or a Jailbreak to stay stock. With 797+ horsepower under the hood, these machines are the pinnacle of American engineering. But here is the cold, hard truth: the factory exhaust manifolds are holding you back.
From the factory, Chrysler designed these manifolds for mass production and sound suppression, not maximum velocity. On a naturally aspirated engine, stock manifolds are a nuisance. On a 6.2L high-output supercharged Hemi pushing nearly 15 PSI, they are a bottleneck.
If you want to push your Redeye past the 800-wheel-horsepower mark, you need to let it breathe. You need 2-inch long-tube headers.
Push the Limit with 2-Inch Primaries
When it comes to high-performance exhaust, size matters. For the standard Hellcat, 1 7/8-inch headers are often sufficient. But the Redeye and Jailbreak models are different animals. They feature a larger supercharger (2.7L vs 2.4L) and higher redlines.
The 2-inch primary header is the industry standard for high-output Mopars.
Smaller primaries create excessive backpressure. This backpressure traps heat in the combustion chamber, leading to higher cylinder temperatures and potential knock. By upgrading to 2-inch primaries, you provide a massive exit path for spent gases. This reduces the workload on your supercharger, drops engine temperatures, and allows your tuner to get aggressive with timing.
Why American Racing Headers (ARH) Lead the Pack
At DTX Performance, we don’t gamble with quality. We recommend American Racing Headers for one reason: they are built to take the abuse of 1,000+ HP builds.
- Precision Engineering: ARH systems feature 304 stainless steel construction that won’t rust or degrade under the intense heat of a supercharged Hemi.
- Merge Collectors: Their hand-finished merge collectors optimize scavenging, pulling exhaust out of the cylinder more efficiently than cheap alternatives.
- Perfect Fitment: No one wants to spend twelve hours clearancing a frame rail. ARH is known for a "bolt-on" experience that respects the tight tolerances of the Redeye engine bay.
Build for Power: Supporting Mods
Adding long-tube headers is a massive step, but it’s only one part of the equation. To truly unlock the potential of your Redeye or Jailbreak, you must look at the supporting cast.
Fuel Injectors: Feed the Beast
When you increase flow, you must increase fuel. While the stock Redeye injectors are robust, they reach their duty cycle limit quickly once you add headers, a Cold Air Intake, and a tune: especially if you plan on running E85.
We recommend stepping up to Fuel Injectors like the Injector Dynamics ID1050x or ID1300x. These ensure that even at the top of 4th gear, your engine isn’t leaning out. High-performance headers and fuel injectors go hand-in-hand; one provides the air, the other provides the fire.
Tuning: The Digital Brain
Do not install headers without a custom tune. Long-tube headers significantly change the volumetric efficiency of your engine. Without a proper recalibration of the PCM, you risk running lean. A professional tune will also take advantage of the reduced backpressure to add timing, resulting in typical gains of 30–50 RWHP over stock.
Select the Sound: From Muscle to Race Car
The transformation isn't just about the numbers on the dyno. It’s about the soul of the car.
Stock Hellcats have a deep, muffled growl. Adding 2-inch ARH headers transforms that into a violent, metallic scream. At idle, the "chop" of the Hemi becomes more pronounced. At Wide Open Throttle (WOT), your Redeye will sound less like a street car and more like a Pro-Mod dragster.
If you want to maintain some civility, pair these headers with a high-flow catted mid-pipe. If you want maximum violence, go catless and let the world know exactly how much boost you’re pushing.
Shop with Confidence at DTX Performance
Upgrading a Redeye or Jailbreak is an investment in excellence. We know you care about precision, which is why we only stock the best selection of auto parts for modern muscle vehicles.
Whether you are looking for Brakes to stop that 800 HP beast or Suspensions to help you hook at the track, we’ve got you covered.
We promise to only send you good things. No filler, no low-grade materials: just high-octane performance parts delivered to your door.
The DTX Checklist for Header Installation:
- Select Your Headers: Choose ARH 2-inch primaries for the best flow.
- Verify Fueling: Ensure your Fuel Injectors can handle the new power level.
- Upgrade the Intake: Pair your headers with a high-flow Cold Air Intake.
- Tune It: Lock in the gains with a custom PCM calibration.
- Finish the Look: Check out our Wheels to get the perfect stance.
Frequently Asked Questions
Will 2-inch headers fit my stock exhaust?
Most long-tube header kits, including those from ARH, come with a matching mid-pipe that connects to your factory cat-back or aftermarket system. However, they are not a direct "drop-in" replacement for just the manifold; the entire mid-section usually changes.
Do I really need 2-inch primaries for a standard Hellcat?
While 1 7/8-inch is fine for a 707 HP Hellcat, the Redeye and Jailbreak variants move significantly more air. If you plan on any future mods (like a pulley or E85), the 2-inch primary is the correct choice to avoid future bottlenecks.
How much weight do I save?
Factory cast-iron manifolds and heavy catalytic converters are surprisingly heavy. Switching to stainless long-tubes and high-flow cats can shave anywhere from 15 to 25 lbs off the front end of your car.
Ready to unleash the beast? Shop Exhaust Systems Now and take your Redeye to the next level.
