Remark RO-TSE3-D Mufflerless Axleback SS Quad Tips 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. A separate Remark axleback is available for 2014-2016 IS owners, but it requires the installation of a 2017-2020 OEM Lexus IS rear diffuser to achieve proper tip fitment. 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 most aggressive sound configuration available in the Remark IS/RC axleback lineup.
• This is the stainless double wall tip variant (-D). The same system with stainless single wall tips is available as RO-TSE3-S; 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 - the 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 exhaust note compared to the larger-displacement V6-equipped models (IS250/300/350, RC300/350), which have a more prominent and resonant exhaust note with this mufflerless system. All models benefit from the weight reduction and acoustic improvement over the factory exhaust.

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 (2GR-FE, 2GR-FSE, 4GR-FSE) and four-cylinder (8AR-FTS) 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 notably more engaging than the subdued factory exhaust while remaining usable for daily driving - customer reviews describe it as not obnoxious at lower throttle with an authentic V6 character that rewards higher RPM driving
• Quad 3.5-inch stainless double 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 and providing a visual appearance that matches the premium sports-sedan character of the platform; the double wall construction creates a layered appearance at the tip face where the inner pipe is visible inside the outer wall, providing depth and visual quality; the polished stainless finish is bright and corrosion-resistant without the heat-toned iridescent toning of burnt variants
• 2.5-inch mandrel-bent T304 stainless piping - the 2.5" pipe diameter provides increased cross-sectional area for exhaust flow compared to the factory exhaust system, reducing back pressure through the rear section; mandrel bending preserves the full 2.5" internal diameter through all bends, maintaining consistent flow velocity without the restriction created by conventional press or crush-bent piping; 16-gauge wall thickness provides the structural rigidity needed to support the system weight across the OEM hanger locations
• Factory OEM-style exhaust hanger rod construction - the 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; the OEM hanger geometry ensures the system hangs at the correct height and orientation relative to the rear bumper cutouts
• Hand TIG welded - all joints, flange connections, and tip attachments are hand-welded using the TIG process for clean, precise, fully sealed welds; TIG welding provides stronger welds with better penetration and a neater appearance than MIG welding, and eliminates the weld porosity that can develop into exhaust leaks at MIG-welded joints under extended thermal cycling
• Weight reduction over factory - the factory IS and RC muffler canisters are substantial OEM units; replacing them with this mufflerless axleback provides a meaningful reduction in exhaust system weight, removing mass from the rear of the vehicle and contributing a minor improvement in the power-to-weight ratio and rear weight distribution

Specifications

• Part Number: RO-TSE3-D
• 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, double 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 double wall slant-cut tips
• Mounting bolts and nuts

Product Description

The Remark RO-TSE3-D 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 double wall quad tips. The mufflerless design removes the factory muffler canisters and routes the exhaust through straight-through piping directly to four 3.5-inch slant-cut tips - two per side - that exit through the IS and RC's factory quad-tip rear bumper openings. The result is the most aggressive sound configuration in the Remark E3 platform axleback lineup: the V6 models (IS250/300/350, RC300/350) produce a notably more engaging and volume exhaust note that rewards higher throttle inputs while remaining manageable at cruise; the four-cylinder turbo models (IS200T, RC200T) produce a quieter improvement over stock given the different acoustic character of the smaller displacement turbocharged engine.

The 2.5-inch mandrel-bent T304 stainless steel piping, 16-gauge wall thickness, factory OEM-style hanger rods, and hand TIG welding throughout deliver the build quality and direct bolt-on fitment that Remark products are known for. The polished stainless double wall tips provide a premium layered visual at the rear of the IS and RC, with the inner pipe visible inside the outer wall for a depth-of-field appearance distinct from single wall tips.

Important: This system does not fit 2014-2016 Lexus IS models - the rear bumper and diffuser geometry of the 2014-2016 IS is different from the 2017-2020 facelift and is not compatible with this system's tip exit configuration. The system is also not compatible with aftermarket exhaust systems; it requires the OEM factory midpipe. Owners who prefer a different tip finish can find the single wall stainless variant (RO-TSE3-S), burnt stainless single wall (RO-TTE3-S), and burnt stainless double wall (RO-TTE3-D) in the same axleback family.