Click to zoom in
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-D |
|---|---|
| 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 | Double-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-S
- Compare same-vehicle option: REMARK 2021+ Lexus IS300/ IS350 Axleback Exhaust - Burnt Stainless Double Wall Tip (Muffler Version)
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.
Axle Back
Axle back exhaust systems for cars, trucks, SUVs, and performance builds are stocked at Black Ops Auto Works. Shop single and dual exit axle back systems, valved axle back exhausts, stainless steel and titanium tip options, black chrome and carbon fiber tips, and vehicle specific axle back kits for Corvette, Mustang, WRX, Miata, Corolla, Bronco, and Explorer platforms from MBRP, Borla, MagnaFlow, AWE Tuning, Corsa, and aFe. Every axle back system is filterable by year, make, model, trim, engine, and drivetrain so the correct diameter, tip style, and mounting hardware ships the first time. Black Ops Auto Works carries 611 axle back SKUs across single exit, dual exit, and valved categories. What This Collection Covers Axle back exhaust replaces everything from the rear axle back, typically the muffler, resonator if equipped, and exhaust tips, without touching the catalytic converter, mid pipe, or headers. It is the most common entry point into aftermarket exhaust because it focuse...
View Axle Back Products
Exhaust Systems
Shop performance exhaust systems, cat-backs, axle-backs, headers, mufflers, and exhaust tips at Black Ops Auto Works. Compare options from Borla, CORSA, Solo Performance, AWE, MagnaFlow, MBRP, Kooks, Akrapovic, Invidia, and other brands. Find complete systems and individual components for muscle cars, performance SUVs, trucks, imports, and European vehicles. Cat-Back and Axle-Back Exhaust Systems Choose the exhaust section that matches your project. Cat-back systems generally replace the exhaust downstream of the catalytic converter, while axle-back systems replace the rear section. Exact connection points and package contents vary by vehicle. Compare muffler design, pipe diameter, exit location, tip configuration, and compatibility with existing exhaust components. Exhaust for HEMI, SRT, Trackhawk, and Hellcat Vehicles This collection includes exhaust options for selected Jeep Grand Cherokee SRT and Trackhawk, Dodge Durango SRT and Hellcat, Dodge Charger, Chrysler 300, and Ram appl...
View Exhaust Systems Products
Remark
Shop REMARK cat-back exhaust systems, axle-back exhausts, and midpipes at Black Ops Auto Works. Explore stainless steel and titanium options for Subaru WRX and STI, Toyota GR Corolla and GR86, Subaru BRZ, Honda Civic and Civic Type R, Nissan Z, Lexus IS, Infiniti Q50, and selected Mazda MX-5 applications. Compare exhaust layout, muffler configuration, tip finish, and exact vehicle fitment. REMARK Cat-Back Exhaust Systems Choose from REMARK Sports Touring, R1, Elite Spec, Ti-Spec, and other application-specific cat-back systems. Listed configurations include single-exit, dual-exit, quad-tip, and center-exit designs. Match the system to the correct chassis, body style, engine, and bumper openings before selecting the sound and appearance you want. REMARK Axle-Back Exhausts Explore muffled, standard, muffler-delete, Quiet Spec, Stealth Edition, Boso Edition, and R1 axle-back options for selected vehicles. These systems replace the rear exhaust section specified in the listing. Confirm ...
View Remark Products