Remark RO-TTE4-DM Burnt SS Axleback Muffler Exhaust, 2021-2026 Lexus IS300/IS350

Vehicle Fitment

• 2021-2026 Lexus IS300
• 2021-2026 Lexus IS350

Fitment Notes

• Direct bolt-on replacement for the OE mufflers - no cutting, welding, or modifications required
• Factory exhaust can be reinstalled easily at any time if desired
• Does not trigger check engine lights and does not affect vehicle emissions
• This is the "Muffler Version" of Remark's axleback lineup, featuring true muffler canisters rather than resonator-only or valved designs - expect a milder, more refined exhaust note than Remark's more aggressive offerings

Features

• Two high-flow, straight-through design muffler canisters produce a deep, sporty exhaust note
• Volume is tuned to be mild and balanced - heard primarily from inside the cabin rather than overpowering from outside
• Nice balance between deep exhaust tone and natural engine sound, similar to a factory-optional performance exhaust
• Burnt stainless steel tips are chemically treated to produce a spectrum of gold, purple, and blue hues for a distinctive, upscale look
• Double wall tip construction (inner and outer stainless layers) gives the tips a thicker, more substantial, luxurious appearance
• Full 304 stainless steel construction throughout
• Fully TIG welded by hand for durable, clean construction
• Simple, straightforward installation using factory hardware and mounting points

Specifications

• Exhaust Type: Axleback (Muffler Version)
• Material: 304 Stainless Steel
• Tip Finish: Burnt Stainless (Double Wall)
• Welding: Fully TIG Welded
• Muffler Design: High-Flow, Straight-Through
• Emissions Impact: None (Does Not Trigger CEL)

Included Components

• 1x Right Side Axleback Muffler Assembly
• 1x Left Side Axleback Muffler Assembly
• Mounting Hardware

Product Description

The Remark RO-TTE4-DM is a Muffler Version axleback exhaust built for the 2021-2026 Lexus IS300 and IS350, featuring burnt stainless steel double wall tips for a distinctive, upscale finish. Two high-flow, straight-through muffler canisters deliver a deep, sporty exhaust note that's tuned to be heard primarily from inside the cabin - a refined upgrade rather than an overwhelming one, striking a nice balance between exhaust tone and engine sound.

The burnt tip finish is achieved through a chemical treatment process that produces a spectrum of gold, purple, and blue hues across the stainless steel, giving the exhaust a striking, dealer-optional look. Combined with the double wall tip construction - an inner and outer layer of stainless steel - the tips appear noticeably thicker and more substantial than a standard single-wall design.

Built from full 304 stainless steel and fully TIG welded, this axleback is a simple bolt-on replacement for the factory mufflers. No cutting, welding, or modifications are required, and the factory exhaust can be reinstalled at any time if needed. It doesn't trigger a check engine light or affect emissions, making it a straightforward, reversible upgrade for both street and daily-driven builds. Note: this burnt-tip variant does require a bit more care when cleaning to preserve the color finish.