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. Our bypass hose is constructed from heat and pressure resistant 5-layer silicone and tapers from 3/4" to 5/8" to fit the “in" and “out" ports on your water pump. Bypassing the heater core with a bypass hose is the preferred method, as opposed to blocking off the ports. This allows coolant to flow for your thermostat to function properly and avoid overheating. As with all our products, the Mishimoto Silicone GM LS V8 Heater Core Bypass Hose is backed by our signature Mishimoto Lifetime Warranty.

Vehicle Fitment

Years	Make	Model	Trim
2008–2009	Buick	Lacrosse	Super
2006–2007, 2009–2015	Cadillac	CTS	V
1998–2002, 2012–2015	Chevrolet	Camaro
2010–2015	Chevrolet	Camaro	SS
2014–2015	Chevrolet	Camaro	Z/28
1998–2002	Chevrolet	Camaro	Z28 SS
2006–2013	Chevrolet	Corvette
2013	Chevrolet	Corvette	427
2008	Chevrolet	Corvette	427 Limited Edition Z06
2003	Chevrolet	Corvette	50th Anniversary Edition
2003	Chevrolet	Corvette	50th Anniversary Edition Pace CAR
1997–2013	Chevrolet	Corvette	Base
2010–2013	Chevrolet	Corvette	Grand Sport
1998	Chevrolet	Corvette	Indianapolis 500 Pace CAR
2011	Chevrolet	Corvette	Z06 Carbon
2006–2009	Chevrolet	Impala	SS
2006–2007	Chevrolet	Monte Carlo	SS
2014–2017	Chevrolet	SS	Base
2005–2006	Chevrolet	SSR	Base
2006–2009	Chevrolet	Trailblazer	SS
1998–2002	Pontiac	Firebird	Formula
1998–2002	Pontiac	Firebird	Trans AM
2009	Pontiac	G8	GXP
2005–2008	Pontiac	Grand Prix	GXP
2004–2006	Pontiac	GTO	Base
2008–2009	Saab	9-7X	Aero