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Add a deeper exhaust note while keeping the factory dual-exit layout
Roush 422356 replaces the central muffler section on 2019-2027 Ram 1500 trucks equipped with the 5.7L HEMI V8 and factory dual-exit exhaust. The bolt-on stainless-steel assembly reuses the original tailpipe layout and is designed for an easy garage-tool installation.
Key Features
- 422356 is engineered for Ram 1500 5.7L V8 trucks with factory dual-exit exhaust
- Performance muffler and connecting pipe replace the restrictive factory center section
- Stainless-steel construction resists corrosion
- Bolt-on installation uses the original dual tailpipe layout
- Manufacturer rates installation as easy with an estimated one-hour time
- Designed to provide a more aggressive Roush exhaust note
- Free shipping is offered by the manufacturer within its stated continental U.S. terms
Fitment
| Years | Make | Model | Required Configuration |
|---|---|---|---|
| 2019-2027 | Ram | 1500 | 5.7L HEMI V8 with factory dual-exit exhaust |
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | 422356 |
| Product Type | Performance muffler system |
| Application | 2019-2027 Ram 1500 5.7L V8 |
| Required Exhaust | Factory dual exit |
| Material | Stainless steel |
| Installation Difficulty | Easy, manufacturer rating |
| Estimated Installation Time | 1 hour |
| UPC | 844764005181 |
What's Included
- One Roush 422356 performance muffler assembly
- One application-specific connecting pipe and three exhaust clamps shown with the exact system
- Factory tailpipes and tips are reused; tools, replacement hangers, and unrelated exhaust parts are not included
About Roush
Roush Performance develops vehicle-specific induction, exhaust, suspension, and appearance upgrades using OE-level engineering experience. Its Ram muffler system retains the factory dual-exit architecture while changing the central flow path and sound character.
Related Parts
- No internal exhaust tip, tailpipe, or hanger is linked because every companion part must match the exact 5.7L dual-exit truck and existing exhaust condition.
FAQ
What is the 422356?It is a bolt-on Roush performance muffler system for supported Ram 1500 5.7L V8 trucks with factory dual-exit exhaust.
Does it fit a single-exit truck?No. The verified application requires the factory dual-exit exhaust configuration.
Does it fit engines other than the 5.7L HEMI?No other engine is verified for this exact part number.
Are new exhaust tips included?No. The system retains the truck's factory dual tailpipes and tips.
What parts are included?The exact product image shows the muffler assembly, connecting pipe, and three clamps.
How difficult is installation?Roush rates the installation as easy and estimates about one hour with ordinary garage tools.
Will the exhaust sound change?Yes. The system is designed to deliver a more aggressive Roush exhaust note while retaining the factory outlet layout.
Should the existing exhaust be inspected first?Yes. Confirm engine, dual-exit layout, pipe condition, hanger condition, clamp locations, and previous modifications before disassembly.
Installation Instructions
- Confirm the 2019-2027 Ram 1500 has a 5.7L V8 and factory dual-exit exhaust before opening 422356.
- Allow the exhaust to cool, support the truck safely, and inspect the factory pipes, hangers, fasteners, and clearances.
- Loosen the original clamps and remove the center muffler section without damaging the retained tailpipes or rubber isolators.
- Position the supplied connecting pipe and muffler in the documented orientation, then install all three clamps loosely.
- Align the system for even tailpipe position and adequate heat clearance, then tighten the clamps to the current Roush specification.
- Start the engine, inspect for leaks or contact, complete a controlled road test, and recheck clamp torque after the first heat cycles.
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