The Remark muffled axle-back adds a restrained, deeper exhaust note to the Lexus IS using two straight-through muffler canisters. It replaces the original rear sections while retaining the factory midpipe, offering a milder alternative to Remark's muffler-delete design.
Key Features
- System: Two-piece axle-back
- Mufflers: Two straight-through stainless canisters
Fitment
| Years | Make | Model | Submodel |
|---|---|---|---|
| 2021-2025 | Lexus | IS300 | |
| 2021-2026 | Lexus | IS350 |
IS300 four-cylinder turbo only. IS350 V6. Retain factory donut gaskets and spring bolts.
Specifications
| Manufacturer Part Number | RO-TSE4-DM |
|---|---|
| System | Two-piece axle-back |
| Piping | 2.5-inch, 16-gauge T304 stainless steel |
| Mufflers | Two straight-through stainless canisters |
| Tip Diameter | 4 inches |
| Tip Wall | Double-wall |
| Welding | TIG |
| Tip Finish | Polished stainless steel |
What's Included
Left and right muffled axle-back assemblies. Factory donut gaskets and spring bolts are reused.
Brand Information
Remark designs exhaust systems and matching components for specific vehicle applications. Its axle-back, midpipe and complete cat-back designs have separate connection and installation requirements.
Related Parts
- Alternative configuration: Remark RO-TTE4-DM
- Compare same-vehicle option: Remark 2021+ Lexus IS350 Axle Back Exhaust w/Stainless Steel Double Wall Tip
- Compare same-vehicle option: Remark 2021+ Lexus IS350 Axle Back Exhaust w/Burnt Double Wall Tip
- Compare same-vehicle option: Remark 2021+ Lexus IS350 Axle Back Exhaust w/Stainless Steel Single Wall Tip
Frequently Asked Questions
How does this differ from the muffler-delete version?
This version retains two straight-through muffler canisters. Remark describes the resulting volume as comparatively mild.
Are new factory-connection gaskets required by the kit?
Remark specifies reusing the factory donut gaskets and spring bolts.
Installation Instructions
Install at the original rear exhaust connections using the factory donut gaskets and spring bolts. Align both rear sections before final tightening. Follow Remark's instructions for the specific finish.
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