# MagnaFlow Muffler Mag SS 5X8 14 3/2.5 The MagnaFlow 5 X 8in. Oval Straight-Through Performance Exhaust Muffler 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. - Delivers a Smooth, Deep Tone - Delivers A Smooth-Deep Tone - Mufflers Are Bi-Directional - 100 Percent Stainless Steel - 100% Stainless Steel This Part Fits: Year Make Model Submodel 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 2002-2005 Chevrolet Silverado 1500 Base 2004-2006 Chevrolet Silverado 1500 Hybrid 2002-2006 Chevrolet Silverado 1500 LS 2002-2006 Chevrolet Silverado 1500 LT 2002-2006 Chevrolet Silverado 1500 WT 2004-2005 Chevrolet Silverado 1500 Z71 Off-Road 2007 Chevrolet Silverado 1500 Classic Hybrid 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 2002-2005 GMC Sierra 1500 Base 2002 GMC Sierra 1500 HT 2005-2006 GMC Sierra 1500 Hybrid 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 Hybrid 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 ## Details - **Price:** 309.03 CAD - **Vendor:** Magnaflow - **Type:** Muffler ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 309.03 CAD | In stock | --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-muffler-mag-ss-5x8-14-3-2-5) > Updated: 2026-06-29