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The Remark muffler-delete axle-back replaces the Lexus IS rear muffler canisters with stainless piping and larger slant-cut outlets. It gives the exhaust a more pronounced tone while retaining the factory midpipe connection. The effect on sound differs between the turbocharged IS300 and V6 IS350.
Key Features
- System: Two-piece axle-back
- Muffler Configuration: Muffler delete
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-TTE4-S |
|---|---|
| System | Two-piece axle-back |
| Piping | 2.5-inch, 16-gauge T304 stainless steel |
| Tip Diameter | 4 inches |
| Tip Material | T304 stainless steel |
| Muffler Configuration | Muffler delete |
| Welding | TIG |
| Tip Finish | Burnt stainless steel |
| Tip Wall | Single-wall |
What's Included
Left and right axle-back assemblies. Reuse the factory donut gaskets, spring bolts and nuts at the original midpipe connection.
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-TSE4-S
- Alternative configuration: Remark RO-TSE4-D
- Alternative configuration: Remark RO-TTE4-D
- Compare same-vehicle option: Remark Lexus IS Axle-Back - 2014-2016 Applications - Burnt Stainless Single-Wall Tips
Frequently Asked Questions
Do I replace the factory midpipe?
No. The axle-back flanges are designed for the factory midpipe.
Are the burnt tips titanium?
No. Both polished and burnt finishes use stainless-steel tips.
Will it fit a 2014-2020 IS?
No. Remark excludes those earlier IS models from this version.
Installation Instructions
Reuse the factory donut gaskets, spring bolts and nuts. Replace the original rear assemblies and align the tips before final tightening. No cutting or welding is specified by Remark.
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