Mishimoto 2015 Subaru WRX Black Silicone Radiator Coolant Ancillary Hoses Kit

If you're working on your 2015-2021 Subaru WRX, replacing the factory rubber coolant and PCV hoses with a Mishimoto silicone kit is a smart move. Over time, the stock rubber hoses can become brittle and fail, especially when exposed to engine heat and oil particles. This kit addresses those weak points by swapping out 13 key hoses with durable silicone replacements.

Mishimoto builds these hoses with four layers of silicone, reinforced with heat-resistant embedded fibers. This construction gives them a much better tolerance for higher temperatures and increased system pressure compared to standard rubber. The silicone material also holds up significantly better against oil contamination, which is a common issue with PCV lines that can lead to premature degradation and leaks. Because they're designed to factory specifications, these hoses fit right in place of the original parts, making installation straightforward.

This black kit is a solid option for improving the long-term reliability of your WRX's cooling and PCV systems. It comes with Mishimoto's Lifetime Warranty, so you know they stand behind the quality of their work.