Valved Exhaust System for Jeep Grand Cherokee WK2 HEMI V8 6.4 (2012-2020)
Configuration
Jeep Grand Cherokee WK2 V8 6.4 Valved Exhaust System (2012-2020)
Valves
Operated by remote control, factory-paired.
Estimated at 0.50 m from the outlet, 45°, 2,000 rpm with a warm engine. Allow ± 2 dB depending on the engine and measuring point. A 3 dB difference is audible in a direct comparison; 10 dB sounds roughly twice as loud.
Configuration guide
Sound intensity ratings are not yet available for this model.
The Jeep Grand Cherokee WK2 V8 6.4 exhaust in detail.
The Grand Cherokee WK2 SRT hides a naturally aspirated 6.4-litre HEMI V8 under its bonnet, with a central camshaft and hemispherical combustion chambers: 477 hp and 637 Nm, sent to all four wheels. Its massive torque, present from the lowest revs, moves this large SUV with astonishing ease, and every press of the throttle translates into strong thrust.
No turbo softens the pulses: everything goes through the exhaust, and the WK2’s holds it back so well that the HEMI only reaches the cabin as a deep murmur. With the Rog valved cat-back, also known as a valve exhaust, the Grand Cherokee regains an audible start-up, full-bodied acceleration and rounded downshifts with the valves open; with the valves closed, it becomes a large, comfortable SUV again, discreet on the motorway and in town.
The page is for the 6.4 V8 WK2 from 2012 to 2020; beyond that, compatibility is not established, and your VIN is checked before manufacturing. With clamps and gaskets, no welding, the system goes on in about two hours, with a lift still recommended for an SUV of this size; the factory valve control is retained if it exists, otherwise the Rog remote takes over from its unit in the boot.
No front section is offered for this HEMI: the system connects behind the factory catalytic converters, with no ECU remap, and the 477 hp remain Jeep’s own. On an SUV that faces winter and road salt, 304 stainless steel has strong arguments, while titanium, around 40% lighter for the same design, stands out with its brushed, gold or purple finishes on the round tips.
Jeep Grand Cherokee WK2 V8 6.4 exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicle and chassis code | Jeep Grand Cherokee WK2 with the 6.4 engine (SRT) |
| Engine | HEMI, 6.4-litre naturally aspirated V8, 477 hp and 637 Nm, four-wheel drive |
| Years | 2012-2020 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory valve control if the car has it, otherwise the Rog remote |
| Fitting | Clamps and gaskets, no welding, about 2 hours |
| Manufacturing and delivery | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the Jeep Grand Cherokee WK2 V8 6.4 exhaust.
Is my 2021 Grand Cherokee WK2 V8 6.4 covered by this system?
The page is for 6.4 V8 WK2 models from 2012 to 2020, and compatibility beyond that is not established. Your Jeep’s VIN, requested when you order, lets us check before starting manufacturing.
On the Grand Cherokee WK2 SRT, does the Rog exhaust require an ECU remap?
Not at all: with no front section on this page, the HEMI keeps its map and its 477 hp. On a 6.4-litre naturally aspirated engine, the system mainly works on the voice, the breathing and the weight at the rear.
Grand Cherokee WK2 V8 and the vehicle inspection: is there anything to plan for?
Just close the valves before the test. The SUV’s original catalytic converters stay in place, since this page does not replace the front section, and the V8 returns to the hushed sound of the stock car.
Does the Grand Cherokee WK2 V8 remain a good touring SUV with the Rog system?
Yes: with the valves closed, there is no drone at a steady speed and the family travels in peace. The HEMI rumble comes back when you decide, via the factory control or the Rog remote.
Jeep Grand Cherokee WK2 V8 6.4: straight pipe or resonator?
On this model, two characters at the same price: the straight pipe for the raw sound of your engine, unfiltered, or the resonator for a rounder and slightly softer voice. Either way, the exhaust stays fully sporty. Learn more: Exhaust resonator: what does it do? Straight pipe or resonator, which sound to choose.
Rog expert guide
Jeep Grand Cherokee WK2 V8: the 6.4-litre set free, the exhaust system guide
The Grand Cherokee WK2 with the 6.4-litre V8 is an SUV like no other: a model with an off-road heritage powered by a big 477 hp naturally aspirated American engine. With no turbo to filter the sound, everything happens in...
In detail
Rog Advisor
A question about this exhaust?
Fitment, sound, catalyst, valves, delivery: the answer comes straight away, with your configuration in context.
The Rog Advisor is an automated assistant trained on our product pages and answers. For an important decision, write to us: we confirm by e-mail.
Unsure about your configuration? Talk to us before you order. We know your car. Write to us at contact@rogmotorsport.com: we reply in writing, in English, within 24 hours. Email us
Reviews imported from our previous system and translated from French; verified purchases carry the badge.
Rog presentation film: choosing your vehicle, Standard or Equal Length design, stainless steel or titanium, Z-Pipe, controlled valves, titanium and tip finishes, and support from choosing your configuration through to shipping.
THE Rog CRAFT
Our process.
From the first bend to the last check. The same care at every step.
-
Design
Designed for your vehicle.
Geometry matched to your model, carefully studied bends and precise mounting points. Everything starts with accurate design.
-
Manufacture
Crafted with precision.
Tube bending, part fitting and TIG welding: every joint receives the same care.
-
Finishing
Material, elevated.
The finish reveals the character of the metal. Stainless steel or titanium, depending on the options available for your vehicle.
-
Assembly
Every part in its place.
Components are assembled and adjusted. On valved systems, the mechanism is fitted, set up and tested.
-
Inspection
Check. Then approve.
Geometry, welds, connections and gas flow: the key points are inspected before shipping.
-
Shipping
Ready to join you.
Reinforced packaging protects your exhaust in transit. The final step before giving your vehicle a new voice.
Customer builds
Your videos & photos
The Rog lines fitted on our customers' vehicles, in real conditions.
- Builds
- 500+
- Brands
- 28
- Satisfaction
- 4,9
The journal
News & advice
Best valved exhaust for the Audi RS3 8Y
Which valved exhaust for an Audi RS3 8Y? The options compared (sound, material, valves) and the Rog system made to...
Read the articleBest valved exhaust for the Mercedes-AMG A45 / A45 S W177
Which valved exhaust for a Mercedes-AMG A45 or A45 S W177? The options compared (sound, material, valves) and the Rog...
Read the articleBest valved exhaust for the BMW M2 G87
Which valved exhaust for a BMW M2 G87? The options compared (sound, material, valves) and the Rog system made to...
Read the articleExhaust rules: what changes in 2026 and 2027 (Euro 7, noise cameras, MOT)
Euro 7, new-car noise, noise cameras, MOT and vehicle inspection, and models: what really changes in 2026 and 2027 for...
Read the articleChanging your exhaust: what inspections and approvals cost in 9 countries
What the periodic inspection and the check of a modification cost after changing your exhaust, in 9 European countries: official...
Read the articleIs a cat-back exhaust legal in Ireland? What the NCT checks.
A cat-back leaves your factory cat, sensors and OBD as they are; valves closed, very close to stock, valves open,...
Read the articleSports exhaust (sportsummuti) in Estonia: what the tehnoülevaatus checks.
The sound you choose, a discreet car when it matters: what a Rog valved exhaust gives you in Estonia, how...
Read the articleSports exhaust in Latvia: tehniskā apskate and the CSDD noise limit.
The sound you choose, a discreet car when it matters: what a Rog valved exhaust gives you in Latvia, how...
Read the articleNo article matches this search.
All articles