Mishimoto MMCP-R90-3040BK Mishimoto 90-Degree Silicone Transition Coupler, 3.00-in to 4.00-in, Black Chevrolet-Silverado-2500-6-6L-Duramax-LB7-2001 It is not a replacement

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Mishimoto MMCP-R90-3040BK Mishimoto 90-Degree Silicone Transition Coupler, 3.00-in to 4.00-in, Black Chevrolet-Silverado-2500-6-6L-Duramax-LB7-2001 It is not a replacementThe 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