Remark RO-TSE3-S Mufflerless Axleback SS Single Wall 17-20 Lexus IS / 15+ RC

Vehicle Fitment

• 2017-2020 Lexus IS200T (RWD & AWD; All Trims)
• 2017-2020 Lexus IS250 (RWD & AWD; All Trims)
• 2017-2020 Lexus IS300 (RWD & AWD; All Trims)
• 2017-2020 Lexus IS350 (RWD & AWD; All Trims)
• 2015+ Lexus RC200T (RWD; All Trims)
• 2015+ Lexus RC300 (RWD; All Trims)
• 2015+ Lexus RC350 (RWD; All Trims)

Fitment Notes

• Does NOT fit 2014-2016 Lexus IS models. The 2014-2016 IS uses a different rear bumper and diffuser geometry that is not compatible with this system's exhaust tip exit configuration. Confirm your IS model year before ordering.
• This system bolts directly to the factory OEM midpipe. It is not compatible with aftermarket exhaust systems - the hanger and flange geometry are engineered specifically for the OEM midpipe outlet configuration on the covered IS and RC models.
• This is a mufflerless design - the factory muffler canisters are removed and replaced with straight-through piping and the quad tips.
• This is the stainless single wall tip variant (-S). The same system with stainless double wall tips is available as RO-TSE3-D; burnt stainless single wall as RO-TTE3-S; and burnt stainless double wall as RO-TTE3-D. All four variants share the same piping, fitment, and sound character - tip wall construction and finish are the only differences.
• Sound character varies by engine. The IS200T and RC200T (2.0L turbocharged four-cylinder) produce a quieter note compared to the V6-equipped models (IS250/300/350, RC300/350), which have a more prominent and resonant exhaust note with this mufflerless system.

Features

• Mufflerless design - the factory IS/RC muffler canisters are removed and replaced with straight-through piping, allowing the natural exhaust character of the Lexus V6 and four-cylinder turbocharged engines to express without attenuation; the mufflerless design produces the most aggressive sound character available in the Remark E3 platform axleback range, delivering a sporty, characterful note that is more engaging than the subdued factory exhaust while remaining usable for daily driving
• Quad 3.5-inch stainless single wall tips - four slant-cut tips exit the rear of the IS and RC (two per side), filling the quad-exit rear bumper openings of these Lexus models; the single wall construction exposes the full inner diameter of the tip face for a clean, open appearance; the polished stainless finish is bright and corrosion-resistant without the heat-toned iridescent toning of the burnt variants; single wall tips present a slightly more understated profile at the tip face compared to the layered double wall appearance
• 2.5-inch mandrel-bent T304 stainless piping - 16-gauge wall thickness provides structural rigidity; mandrel bending preserves the full 2.5" internal diameter through all bends, maintaining consistent flow velocity without restriction; the larger bore compared to the factory exhaust reduces back pressure through the rear section
• Factory OEM-style exhaust hanger rod construction - hanger rods are designed in the same configuration as the factory IS/RC exhaust hangers, enabling direct bolt-on installation using the vehicle's existing rubber isolators and hanger mounting points without modification
• Hand TIG welded - all joints, flange connections, and tip attachments are hand-welded using the TIG process for clean, precise, fully sealed welds that resist exhaust gas leaks through extended thermal cycling
• Weight reduction over factory - replacing the factory muffler canisters with this mufflerless axleback provides a meaningful reduction in exhaust system weight, removing mass from the rear of the vehicle

Specifications

• Part Number: RO-TSE3-S
• Series: Mufflerless Axleback (muffler delete)
• Fitment: 2017-2020 Lexus IS200T/IS250/IS300/IS350; 2015+ Lexus RC200T/RC300/RC350
• Not Compatible With: 2014-2016 Lexus IS (rear diffuser incompatibility)
• Piping Diameter: 2.5 in.
• Piping Wall Thickness: 16-gauge
• Piping Material: T304 Stainless Steel, mandrel bent
• Tip Count: 4 (quad - 2 per side)
• Tip Diameter: 3.5 in.
• Tip Style: Slant cut, single wall
• Tip Finish: Polished Stainless Steel
• Muffler: None - mufflerless design
• Hanger: Factory OEM-style hanger rod construction
• Welding: Hand TIG welded
• Midpipe Compatibility: OEM factory midpipe only
• Aftermarket Exhaust Compatible: No

Included Components

• Left and right axleback pipe assemblies with quad 3.5" stainless single wall slant-cut tips
• Mounting bolts and nuts

Product Description

The Remark RO-TSE3-S is a mufflerless axle-back exhaust for the 2017-2020 Lexus IS (IS200T, IS250, IS300, IS350) and 2015+ Lexus RC (RC200T, RC300, RC350), featuring polished stainless steel single wall quad tips. It shares every specification with the RO-TSE3-D - the same mufflerless design, 2.5" mandrel-bent T304 stainless piping, quad 3.5" slant-cut tip layout, OEM-style hanger construction, and hand TIG welding - with single wall tips in place of double wall.

The single wall tip presents a clean, open face at the rear of the IS and RC, with the full inner pipe diameter visible at the tip exit. The polished stainless finish maintains a bright appearance without the iridescent heat toning of the burnt variants. Four tips exit two per side through the factory quad-tip rear bumper openings, matching the premium visual character of these Lexus sport sedans and coupes.

The mufflerless design removes the factory muffler canisters and routes exhaust through straight-through piping, producing the most aggressive sound configuration in the Remark E3 axleback lineup. V6-equipped models produce a more pronounced result than the four-cylinder IS200T and RC200T. Important: This system does not fit 2014-2016 IS models and is not compatible with aftermarket exhaust systems. Owners preferring double wall, burnt stainless single wall, or burnt stainless double wall tip options should refer to RO-TSE3-D, RO-TTE3-S, and RO-TTE3-D respectively.