Dodge Challenger Hellcat: the thunder of the HEMI, the complete exhaust system guide
The Challenger Hellcat is excess made car: 717 hp and upwards from a supercharged HEMI, with the howl of the blower thrown in. Even on this car, the factory exhaust holds the voice back: our exhaust gives the Hellcat back its full scream. Here you will find everything that matters before configuring the exhaust for your Dodge Challenger SRT Hellcat V8: catalytic converter, material, valves, tips and vehicle inspection.
Your valved exhaust for Dodge Challenger SRT Hellcat HEMI V8 is configured from your VIN, and the Dodge Challenger Valved Exhaust page brings together every system we make for this generation.
Valved Exhaust System for Dodge Challenger SRT Hellcat HEMI V8 6.2 (2015-2023)From 2 890 € · free delivery · 20 working days
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Your Rog exhaust for the Dodge Challenger SRT Hellcat V8
Price shown on the product page, in your currency
Configure my exhaustThe short answer.
- Vehicles
- Dodge Challenger SRT Hellcat V8 6.2 (2015-2023)
- Engine
- 717 to 727 hp · 881 to 889 Nm, depending on the version
- Exhaust
- Valved cat-back, built for your VIN
- Material
- 304 stainless steel or titanium
- Front section
- Optional: catted manifolds with 200 or 100 cells, or decat
- Valves
- Rog remote, or factory control if your vehicle has it
- Lead time
- 20 working days from order confirmation to delivery
- Warranty
- 3 years, parts and workmanship
Closely related versions have their own guide: Dodge Challenger R/T V8 5.7 (2008-2023), Dodge Challenger R/T V8 5.7 (2016-2022).
The HEMI: Detroit's most charismatic V8
The HEMI V8 in your Challenger Hellcat carries the most legendary name in American muscle: hemispherical chambers, massive displacement and a thunderous rumble that Dodge proudly wears as its identity. Yet the factory exhaust holds a good part of it back: the HEMI has more voice than it delivers.
The Rog exhaust delivers it all: the cavernous rumble at idle, the thunderous charge, the cracking bangs. It is America, with valves to turn European again when needed.
How the exhaust on your Dodge Challenger SRT Hellcat V8 is put together
An exhaust system is best understood in two parts. Here is what each one does, and what Rog replaces.
The cat-back is the complete exhaust system
It is everything you can see under your Dodge Challenger SRT Hellcat V8, from the outlet of the front section to the tips: pipes, silencer, valves. This is the part where most of our research and development goes: it is what shapes the sound, and it is enough on its own to transform the car.
The front section, where the catalytic converter sits
On your Dodge Challenger SRT Hellcat V8, these are the manifolds, which collect the gases as they leave the cylinders. The factory catalytic converter is built into them: the second restriction in the exhaust, after the silencer. Replacing it is optional: it frees up the flow, and it is the ECU remap that turns that into horsepower.
Your Dodge Challenger SRT Hellcat V8 in figures
An exhaust system is judged first by ear and on the scales. The extra horsepower comes from an ECU remap.
Power
Torque
Manufacturer factory figures, converted from US units. Factory figures vary by version.
The Rog exhaust works with or without an ECU remap. To get the full potential out of your Dodge Challenger SRT Hellcat V8, we recommend taking it to an approved tuning centre afterwards.
Let's be honest: on the Hellcat's supercharged HEMI, the exhaust brings a moderate gain, and the thunder. The real gains come with Stage 2, the exhaust plus an ECU remap at an approved tuning centre. They stay within the reliability zone of an engine built for it.
Configuring your exhaust, step by step
3 choices, in the same order as the product page configurator.
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Step 1 of 3: Material: stainless steel or titanium
Titanium costs more than stainless steel; the price of each version is shown on the product page, in your currency.
304 stainless steel
- Weight
- Baseline
- Sound
- Full and rounded
The safe bet: strong, corrosion-proof, with a full, rounded sound. The best value for money.
Titanium
- Weight
- Around 40% lighter
- Sound
- Metallic, crystal-clear
It makes the exhaust around 40% lighter for the same design. Its note is more metallic and clearer higher up the rev range, and its finish ranges from brushed to blued.
No worries on durability: 304 stainless steel shrugs off winter road salt and titanium does not rust. Stainless steel or titanium: what really changes.
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Step 2 of 3: Front section: manifolds and catalytic converter
Optional: the manifolds on your Dodge Challenger SRT Hellcat V8, with the catalytic converter. Each option is placed on our sound scale of 0 to 10, valves open, with the factory exhaust at 3.
Cat-back only
Included
7/10Factory emissions control
The factory front section stays in place. It is already a complete transformation, and the choice of many of our customers.
200-cell sports catalytic converter
8/10Road use and inspection
More flow, emissions control retained: the right option for road use.
100-cell sports catalytic converter
9/10Inspection: depends on local rules
More open than the 200-cell: the sound hardens at high revs and emissions control is reduced.
Decat
10/10Track use
Flow with no filter at all: the rawest sound and the sharpest response.
Sound intensity, on a scale of 0 to 10
- 10/10Decat manifolds + Rog cat-back
- 9/10100-cell sports catalytic converter + Rog cat-back
- 8/10200-cell sports catalytic converter + Rog cat-back
- 7/10Rog cat-back only, factory catalytic converter retained
- 3/10Factory exhaust, for comparison
Valves open. With the valves closed, every configuration becomes discreet again.
What about the engine warning light? With a sports cat, it can come on with some engines: the sensor placed after the catalytic converter measures a different level of emissions control from the original. It is not a mechanical failure, but a warning light should never be masked or cleared without dealing with its cause: the right answer is a catalytic converter suited to the engine, with a map by a tuner who takes it into account. The decat version, for track use only, almost always triggers it. If this happens to you, write to us and we will point you in the right direction. Passing vehicle inspection with a sports exhaust.
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Step 3 of 3: Valves: Rog remote or factory control
Two ways to control the valves on your Dodge Challenger SRT Hellcat V8.
Rog remote
A discreet control unit in the boot and a two-button remote: you open and close whenever you like, independently of the drive modes. For fitting, we support you by email.
Factory control
- Only for vehicles fitted with factory valves
- Controlled by the drive modes
For vehicles fitted with factory valves: the exhaust connects to their control and the drive modes stay in charge, with no extra control unit.
At 130 km/h, many sports exhausts drone. Here, with the valves closed, the exhaust flows through the silencer and stays composed when cruising; open, it makes itself heard when you choose. More about exhaust drone.
Your choices carry over to the product page: only the finishes, your VIN and the cart remain.
The Rog sound signature on the HEMI
Our exhaust delivers the full HEMI: a cavernous rumble at idle, thunder under load, and sharp bangs on the overrun with the valves open. It is the muscle car in its purest form. With the valves closed, you are back to being a diplomat.
From order to fitting
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Configuration
You configure the exhaust and enter the VIN from box E of your registration document or from the base of the windscreen.
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Check
Your VIN is checked before any manufacturing begins.
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Manufacturing
The exhaust is produced to order, for your vehicle.
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Delivery
Free, insured parcel, tracking number from dispatch.
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Fitting
Around two hours in the workshop, with no welding or cutting.
20 working days from order confirmation to delivery
- Warranty
- 3 years, parts and workmanship, from the date of purchase
- Payment
- Card, PayPal or bank transfer
- Installation
- At the garage of your choice
Is your Dodge Challenger SRT Hellcat V8 still under the manufacturer's warranty? In Europe, the manufacturer cannot refuse it simply because a part from another brand has been fitted: it is up to them to prove the fault comes from it. Our article on the manufacturer's warranty.
Our recommendations for your Dodge Challenger SRT Hellcat V8
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Daily driving
- Stainless
- Cat-back only
- Rog remote
Your Dodge Challenger SRT Hellcat V8 stays easy to live with, the factory emissions control is retained, and you open the valves when you decide.
View this configuration -
Fast road
- Titanium
- 200-cell manifolds
- ECU remap
The best of both worlds: character and breathing, with emissions control retained.
View this configuration -
Track
- Titanium
- Decat manifolds
- Stage 2
The most extreme configuration, for track use only.
View this configuration
Every Dodge Challenger SRT Hellcat V8 has its own history and use: if none of these profiles fits you, let's talk.
Dodge Challenger SRT Hellcat V8: your questions
How much power does an exhaust add on the Dodge Challenger SRT Hellcat V8?
As standard, the Dodge Challenger SRT Hellcat V8 produces 717 to 727 hp and 881 to 889 Nm, depending on the version. The exhaust alone acts first on sound, breathing and weight; the extra horsepower comes from an ECU remap.
Stainless steel or titanium: which material for the Dodge Challenger SRT Hellcat V8?
The Rog exhaust comes in stainless steel and titanium, at the price shown on the product page in your currency. Stainless steel is the safe bet, with a full sound; titanium makes the exhaust around 40% lighter and gives a more metallic note higher up the rev range.
Do you need to replace the catalytic converter on the Dodge Challenger SRT Hellcat V8?
It is not compulsory. The cat-back alone is enough to change the character of the Dodge Challenger SRT Hellcat V8. Replacing the manifolds is how you go further, together with an ECU remap: 200 cells for the road, 100 cells or decat for more radical use.
Will a Rog exhaust pass vehicle inspection on the Dodge Challenger SRT Hellcat V8?
The cat-back only and the 200-cell converter keep emissions control: present the Dodge Challenger SRT Hellcat V8 with the valves closed. With the 100-cell, acceptance at the emissions test depends on the car and local rules; the decat is intended for track use.
How is the Rog exhaust fitted on the Dodge Challenger SRT Hellcat V8?
With clamps and gaskets, no welding or cutting: around two hours in the workshop for a well-equipped mechanic. The exhaust is built to the VIN of your Dodge Challenger SRT Hellcat V8.
What price and lead time for a Rog exhaust on the Dodge Challenger SRT Hellcat V8?
The price depends on the configuration and is shown on the product page, in your currency. Allow 20 working days from order confirmation to delivery. Delivery is free and the exhaust comes with a 3-year warranty.
Valved Exhaust System for Dodge Challenger SRT Hellcat HEMI V8 6.2 (2015-2023)
From 2 890 € · 3-year warranty
Configure my exhaustUnsure about your configuration? Write to us.
Stainless steel or titanium, cat-back only or the complete system: the right choice depends on how you use your Dodge Challenger SRT Hellcat V8. We take the time to talk it through before you order, with a reply within 24 hours. We are not here to push a sale: we help you choose, even if that means a cheaper option because it suits the way you drive. Write to us: we reply in writing, in English.
Rog is a French brand, and the way we work comes down to one idea: an exhaust system should be sold with advice, not just a product page. More than 500 exhaust systems fitted and a rating of 4.9 out of 5.
Further reading
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