Mishimoto high Performance intercooler, watercooler, oilcooler and oil-catch cans Silicone Reducer Coupler, 90°, 1.75° to 2.5°, Black | Mishimoto MMCP-R90-17525BK Mishimoto high Performance intercooler, watercooler, oilcooler and oil-catch cans The expansive line of silicone couplers from Mishimoto continues to expand! We now offer a broad range of 90-degree transition couplers applicable for use in both coolant and air passage systems. Finding the ideal coupler for your project can be challenging, but we make it easy with a massive selection of various bends, sizes, and colors to achieve your goals. Our couplers feature four layers of silicone, each divided by a layer of heat-resistant embedded fibers. This combination results in maximum durability in extremely harsh environments. Our silicone couplers rated for temperatures up to 330°F and can withstand substantial boost pressures. These couplers are available in black, blue, and red, and as with all our products, they include our signature Mishimoto Lifetime Warranty.