Toyota’s GR Corolla and GR Yaris are celebrated in Europe for their rally heritage, compact powertrains, and undeniable track-day potential. But as any tuner knows, once you start increasing boost and pushing your car’s limits, heat management becomes a critical concern. The OEM intercooler simply can’t keep up with prolonged high-performance driving — especially under tuned conditions or during hot laps.
That’s where the CSF x Jackson Racing Stepped-Core Intercooler comes in. Now available across Europe via ATOMIC‑SHOP, this intercooler is a game-changer for GR Corolla & GR Yaris owners seeking real-world performance improvements, reliability, and motorsport-grade construction — all in a true plug-and-play format.
Engineered for Maximum Cooling in the Most Demanding Builds
Developed using 3D scanning and rapid prototyping, the CSF intercooler offers the largest stepped-core “drop-in” upgrade currently available for the GR Corolla and GR Yaris platforms. It utilizes a Tube & Fin construction, which delivers both higher internal airflow and greater external surface area for heat dissipation.
With a core size that’s up to 73% larger in frontal surface area and 45% greater in volume than the OEM unit, this intercooler has been validated by MotoIQ under real-world track testing. Expect lower intake air temperatures, reduced heat soak, and consistent power delivery — even in the most heat-intensive conditions.
Built for Motorsport. Ready for the Street.
This isn’t a cosmetic upgrade. It’s a battle-tested piece of hardware, engineered with true motorsport durability in mind:
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Fully TIG-welded aluminum construction — no crimped plastic tanks
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Upgraded 2.5” (63.5 mm) inlet/outlet connections for better flow and compatibility with tuned setups
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Includes race-grade silicone hoses and clamps
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Every unit is individually pressure and leak-tested before shipping
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Installation is plug-and-play, requiring only minor trimming of OEM ducting
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Backed by a 2-year limited manufacturer warranty
This level of quality is rarely seen in off-the-shelf intercoolers and reflects the pedigree of CSF and Jackson Racing’s combined engineering.
| Year Range | Make | Chassis Code | Model | Trim | Engine / Trans / Etc | Notes |
|---|---|---|---|---|---|---|
| 2023-2024 | Toyota | GZEA14 | GR Corolla | Circuit Edition | Turbocharged 1.6L L3 | — |
| 2023-2025 | Toyota | GZEA14 | GR Corolla | Core | Turbocharged 1.6L L3 | — |
| 2023 | Toyota | GZEA14 | GR Corolla | Morizo Edition | Turbocharged 1.6L L3 | — |
| 2024-2025 | Toyota | GZEA14 | GR Corolla | Premium | Turbocharged 1.6L L3 | — |
| 2025 | Toyota | GZEA14 | GR Corolla | Premium Plus | Turbocharged 1.6L L3 | — |
| 2020-2025 | Toyota | GXPA16 | GR Yaris | — | Turbocharged 1.6L L3 | Requires modifications for fitment |
Choose Your Look — Silver or Black
Functionally identical, both finishes let you tailor the intercooler to your build’s visual theme:
Whether you’re going for a clean OEM+ aesthetic or stealthy track style, both versions deliver the same elite-level performance.
Part Numbers and OEM Compatibility
This intercooler is designed as a direct-fit replacement for the following Toyota OEM part numbers:
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17940-18020 / 17940-18010
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JD127000-1630
Alternate formats: 1794018020, JD1270001630, 1794018010
Why Order from ATOMIC‑SHOP Europe
ATOMIC‑SHOP is an official dealer of CSF in the EU, providing:
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Fast shipping across Germany and all EU countries
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100% genuine CSF products, backed by factory warranty
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Performance tuning knowledge built over years of supporting enthusiasts and track drivers across Europe
Whether you're prepping for Nürburgring track days or just want more consistent cooling on spirited weekend drives, ATOMIC‑SHOP has you covered.
Frequently Asked Questions
Q: Does this intercooler fit the GR Yaris as well?
A: While developed for the GR Corolla, the dimensions, and fittings may allow compatibility with GR Yaris builds with modifications. Consult our team for guidance.
Q: Is ECU tuning required after installing this intercooler?
A: Not mandatory, but tuning will help fully capitalize on the lower IAT's and improved airflow.
Q: Will this intercooler work with stock charge pipes?
A: Yes — it is a plug-and-play solution, including all hoses and clamps for easy installation.
Q: Are the silver and black finishes performance-equivalent?
A: Yes. The only difference is visual. Performance remains identical.
Ready to Upgrade Your GR Build?
Order the new CSF Stepped-Core Intercooler for your Toyota GR Corolla or GR Yaris at ATOMIC‑SHOP, the official CSF partner across the Europe. Available now in Silver and Black versions.
Race-bred performance. Track-proven reliability. German precision delivery.
