CTS Turbo Intercooler Upgrade for Mercedes Benz C43 C400 C450 E43 E400 E450 GLC43 GLE43 (M276 engine)

CTS Turbo's intercooler for the Mercedes-Benz 3.0-liter V6 biturbo (M276 DE 30 AL) is engineered to raise cooling performance for more power. Its innovative core measures 222mm x 297mm x 95mm — a remarkable 134% increase in external core volume over stock — for efficient heat transfer and optimized internal airflow.

CAD and CFD engineered

Using CAD-optimized cast aluminum end tanks and advanced CFD simulation, it delivers exceptional cooling with minimal pressure drop, ideal for spirited road driving and occasional track use. A high-quality anti-corrosion coating ensures lasting performance, and it is a direct replacement with no modifications required.

• Factory core dimensions: 207mm x 200mm x 65mm = 2.7L volume
• CTS Turbo core dimensions: 297mm x 222mm x 95mm = 6.3L volume

Product details

• Significantly lower IAT, keeping charge air cool and dense
• Increased response and power, ideal for tuned vehicles
• Reduced pressure drop for improved airflow
• 2.25" (57mm) aluminum charge pipes
• Direct-fit replacement for the factory unit, no cutting required
• 134% increase over stock core size
• Includes all hardware required for installation

Fitment — Mercedes 43 AMG (M276 DE 30 AL) 3.0L bi-turbo

• 2014-2023 Mercedes-Benz C400 4MATIC (W205)
• 2015-2019 Mercedes-Benz C450 AMG 4MATIC (W205)
• 2016-2024 Mercedes-Benz C43 AMG 4MATIC (W205)
• 2016-2018 Mercedes-Benz E43 AMG 4MATIC (W213)
• 2018-2020 Mercedes-Benz E450 AMG 4MATIC (W213)
• 2016-2023 Mercedes-Benz GLC 43 AMG 4MATIC (X253)
• 2016-2022 Mercedes-Benz GLE 43 AMG 4MATIC (C292)

Installation note: to re-install the radiator fan with the CTS intercooler in place, the main-circuit coolant hose must be disconnected on one side. The radiator fan sits very close to the intercooler but does not make contact.

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.