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The Remark quad-exit cat-back gives the Corolla hatchback a dual-muffler layout with four slant-cut tips. The system uses stainless piping and connects to the original forward exhaust, but it requires rear diffuser or bumper changes to make room for the wider outlets.
Key Features
- System: Two-piece cat-back
- Tips: Four 3.5-inch double-wall stainless tips
- Mufflers: Two
Fitment
| Years | Make | Model | Submodel |
|---|---|---|---|
| 2019-2026 | Toyota | Corolla |
2.0L hatchback only, not sedan, iM or GR Corolla. Quad-exit variants require diffuser modification, with bumper trimming for 2023+.
Specifications
| Manufacturer Part Number | RK-C4063T-01 |
|---|---|
| System | Two-piece cat-back |
| Piping | 2.5-inch, 16-gauge T304 stainless steel |
| Tips | Four 3.5-inch double-wall stainless tips |
| Mufflers | Two |
| Welding | TIG |
| Tip Finish | Stainless steel |
What's Included
Cat-back exhaust assembly with two mufflers and four tips. Modified or replacement rear diffuser components are not included.
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 RK-C1063T-01
- Alternative configuration: Remark RK-C4063T-01P
- Compare another Remark option for this make: Remark Sports Touring Quad-Exit Cat-Back for 2022-2026 Toyota GR86 / Subaru BRZ - Polished stainless steel
- Compare another Remark option for this make: Remark Sports Touring Quad-Exit Cat-Back for 2022-2026 Toyota GR86 / Subaru BRZ - Burnt stainless steel
Frequently Asked Questions
What changes are needed on a 2023 or newer hatchback?
The rear bumper and diffuser section must be trimmed. Unlike the earlier arrangement, the diffuser is not separately removable.
What about 2019-2022 cars?
The OEM diffuser must be removed or modified, or replaced with a compatible aftermarket diffuser.
Which front gasket does it use?
Remark specifies the factory donut gasket and spring bolts.
Installation Instructions
Retain the factory donut gasket and spring bolts. Complete the required diffuser or bumper modifications for the model year before aligning the four tips. Use Remark's diagrams to establish trimming locations.
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