MDR Industries Billet Expansion Tank for 2017+ Honda Civic Type R / 2024+ Acura Integra Type S / 2017-2020 Honda Civic Si [FC1/FC3/FK8/FL5/DE5] Read reviews

Applications:
1.) 2017-2021 Honda Civic Type R (FK8)
2.) 2017-2020 Honda Civic Si (10th Gen)
3.) 2023+ Honda Civic Type R (FL5)
4.) 2024+ Acura Integra Type S (DE5)

MDR's direct replacement upgrade billet expansion is CNC machined out of 6061-T6 aluminum alloy, TIG welded, and anodized.

This was created to address the issue of leaks at the seams from the factory plastic expansion tank cracking due to continuous heat and pressure cycling.

This billet expansion tank is a direct factory replacement. Size and shape are identical to the factory plastic unit while utilizing all factory mounting location and hoses.

INTERNAL BAFFLE

Internal baffling with passages to prevent coolant sloshing and cavitation

BILLET ALUMINUM

CNC out of 6061-T6 aluminum alloy.

More superior heat transfer material as compared to the plastic material used on the factory tank.

TIG WELDING

TIG welded with no flanges or gaskets that can potentially leak over time

PRESSURE TESTING

Each tank is 100% pressure tested after welding to ensure they are leak free