The MagnaFlow 5" X 8" Oval Straight-Through 14221 brings our signature sound and dyno-proven performance to your ride with a free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill, and a weight-optimized, reversible 3/2.5in. diameter inlet/outlet Straight-Through layout. Muffler 14221s 5x8x14in. oval-shaped body features a premium, brushed finish for an elevated aesthetic that matches the enhanced exhaust note and performance that this muffler brings to your ride. The universal design allows for flexible placement of 14221 within your exhaust system to meet the specific spacing requirements of your vehicle, although professional installation is highly recommended. 14221 is made of durable, corrosion resistant stainless steel and produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow’s limited lifetime construction warranty.
User 1

Vehicle Fitment

Years	Make	Model	Trim
1988–1993	Chevrolet	C1500	Cheyenne
1988–1992	Chevrolet	C1500	Scottsdale
1988–1993	Chevrolet	C1500	Silverado
1990–1993	Chevrolet	C1500	WT
1992–1993	Chevrolet	C1500 Suburban	Base
1992–1993	Chevrolet	C1500 Suburban	Silverado
1988–1993	Chevrolet	C2500	Cheyenne
1988–1992	Chevrolet	C2500	Scottsdale
1988–1993	Chevrolet	C2500	Silverado
1992–1993	Chevrolet	C2500 Suburban	Base
1992–1993	Chevrolet	C2500 Suburban	Silverado
1988–1993	Chevrolet	K1500	Cheyenne
1988–1992	Chevrolet	K1500	Scottsdale
1988–1993	Chevrolet	K1500	Silverado
1991	Chevrolet	K1500	Sport
1990–1993	Chevrolet	K1500	WT
1992–1993	Chevrolet	K1500 Suburban	Base
1992–1993	Chevrolet	K1500 Suburban	Silverado
1988–1993	Chevrolet	K2500	Cheyenne
1988–1992	Chevrolet	K2500	Scottsdale
1988–1993	Chevrolet	K2500	Silverado
1992–1993	Chevrolet	K2500 Suburban	Base
1992–1993	Chevrolet	K2500 Suburban	Silverado
1989–1991	Chevrolet	R1500 Suburban	Scottsdale
1989–1991	Chevrolet	R1500 Suburban	Silverado
1989–1991	Chevrolet	R2500 Suburban	Scottsdale
1989–1991	Chevrolet	R2500 Suburban	Silverado
2004–2006	Chevrolet	Silverado 1500
2002–2005	Chevrolet	Silverado 1500	Base
2002–2006	Chevrolet	Silverado 1500	LS
2002–2006	Chevrolet	Silverado 1500	LT
2002–2006	Chevrolet	Silverado 1500	WT
2005	Chevrolet	Silverado 1500	Z71 OFF-Road
2007	Chevrolet	Silverado 1500 Classic
2007	Chevrolet	Silverado 1500 Classic	LS
2007	Chevrolet	Silverado 1500 Classic	LT
2007	Chevrolet	Silverado 1500 Classic	WT
1999–2000	Chevrolet	Silverado 2500	Base
1999–2000	Chevrolet	Silverado 2500	LS
1999–2000	Chevrolet	Silverado 2500	LT
1989–1991	Chevrolet	V1500 Suburban	Scottsdale
1989–1991	Chevrolet	V1500 Suburban	Silverado
1989–1991	Chevrolet	V2500 Suburban	Scottsdale
1989–1991	Chevrolet	V2500 Suburban	Silverado
1994	Dodge	RAM 1500	Base
2004–2008	Dodge	RAM 1500	Laramie
2004–2008	Dodge	RAM 1500	SLT
2006–2007	Dodge	RAM 1500	Sport
2004–2008	Dodge	RAM 1500	ST
2008	Dodge	RAM 1500	SXT
2006–2007	Dodge	RAM 1500	Trx4
1988–1993	GMC	C1500	Sierra
1988–1993	GMC	C1500	Sierra SLE
1988–1993	GMC	C1500	Sierra SLX
1992–1993	GMC	C1500 Suburban	Base
1992–1993	GMC	C1500 Suburban	SLE
1988–1993	GMC	C2500	Sierra
1988–1993	GMC	C2500	Sierra SLE
1988–1993	GMC	C2500	Sierra SLX
1992–1993	GMC	C2500 Suburban	Base
1992–1993	GMC	C2500 Suburban	SLE
1988–1993	GMC	K1500	Sierra
1988–1993	GMC	K1500	Sierra SLE
1988–1993	GMC	K1500	Sierra SLX
1993	GMC	K1500	Sierra Sport
1992–1993	GMC	K1500 Suburban	Base
1992–1993	GMC	K1500 Suburban	SLE
1988–1993	GMC	K2500	Sierra
1988–1993	GMC	K2500	Sierra SLE
1988–1993	GMC	K2500	Sierra SLX
1992–1993	GMC	K2500 Suburban	Base
1992–1993	GMC	K2500 Suburban	SLE
1988–1991	GMC	R1500 Suburban	Base
1988–1989	GMC	R1500 Suburban	Sierra Classic
1990	GMC	R1500 Suburban	SLE
1988–1991	GMC	R2500 Suburban	Base
1988–1989	GMC	R2500 Suburban	Sierra Classic
1990	GMC	R2500 Suburban	SLE
2005–2006	GMC	Sierra 1500
2002–2005	GMC	Sierra 1500	Base
2007	GMC	Sierra 1500	Classic
2002	GMC	Sierra 1500	HT
1999–2003, 2006	GMC	Sierra 1500	SL
1999–2006	GMC	Sierra 1500	SLE
1999–2006	GMC	Sierra 1500	SLT
2002–2006	GMC	Sierra 1500	WT
2007	GMC	Sierra 1500 Classic	SL
2007	GMC	Sierra 1500 Classic	SLE
2007	GMC	Sierra 1500 Classic	SLT
2007	GMC	Sierra 1500 Classic	WT
1999–2000	GMC	Sierra 2500	SL
1999–2000	GMC	Sierra 2500	SLE
1999–2000	GMC	Sierra 2500	SLT
1988–1991	GMC	V1500 Suburban	Base
1988–1989	GMC	V1500 Suburban	Sierra Classic
1990	GMC	V1500 Suburban	SLE
1988–1991	GMC	V2500 Suburban	Base
1988–1989	GMC	V2500 Suburban	Sierra Classic
1990	GMC	V2500 Suburban	SLE