Description
REMARK Axle-Back Exhaust for 2021+ Lexus IS350. Bring a more pronounced exhaust note to the later Lexus IS with a rear muffler-delete assembly.
The large outlets replace the stock rear presentation without changing the forward exhaust system. Single-wall versus double-wall construction changes the tip edge profile, not the engine application or center-pipe diameter.
Single-wall tip construction uses one layer at the visible outlet edge. The tip diameter and the working pipe diameter are different measurements, so compare both when choosing the rear appearance. Polished or burnt stainless finishes primarily change presentation; the muffler layout and the remaining exhaust components are more relevant to sound.
Technical Specifications
- Manufacturer Part Number: RO-TTE4-S
- Application: 2021+ Lexus IS350
- Selected Configuration: Burnt Single-Wall Tips
- Piping: 2.5-inch, 16-gauge T304 stainless steel
- Tip diameter: 4 inches
- Layout: Two-piece rear muffler-delete assembly
- Fabrication: TIG welded
Fitment and Installation
Use the later-generation IS rear bumper and factory mid-pipe connections. Reuse the specified factory donut gaskets, spring bolts, and nuts. Sound differs between the turbocharged four-cylinder and V6 engines; a tip finish alone does not determine volume.