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Heater Core Bypass Hose (MMHOSE-LSHB-BK) by Mishimoto®. Color: Black. If you’re doing an LS swap, chances are you won’t be running a heater core in the platform you’re swapping. Whether you’re doing an LS swap or building your LS-powered racecar, the Mishimoto Silicone GM LS V8 Heater Core Bypass Hose is the easiest and cleanest solution for bypassing your heater core.
All Mishimoto products carry a lifetime warranty, including accident protection. Mishimoto is a name customers can trust to provide to provide a lifetime of personal satisfaction, and with the lifitime warranty customers know Mishimoto always be there to support their products in every way, even if a product damaged in an accident.