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MagnaFlow Muffler Mag SS 14X5X8-3X2.5/2.5 C/D

  • Backed by real installs and tuning experience at FAST of West Chester
84 in stock


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Regular price $162.00
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Up to 28% off

The MagnaFlow 5 X 8in. Oval Straight-Through Performance Exhaust Muffler 12198 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dyno-proven performance thanks to its free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. The reversible, universal 3/2.5in. diameter inlet/outlet Straight-Through layout allows you to install it in whatever orientation and configuration you see fit. However, professional installation is highly recommended. Muffler 12198s weight-optimized 5x8x14in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 12198 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
2016-2018 Chevrolet Silverado 1500 Custom
2014-2018 Chevrolet Silverado 1500 High Country
2007-2013,2015-2018 Chevrolet Silverado 1500 LS
2007-2018 Chevrolet Silverado 1500 LT
2007-2018 Chevrolet Silverado 1500 LTZ
2015-2018 Chevrolet Silverado 1500 SSV
2007-2018 Chevrolet Silverado 1500 WT
2010-2013 Chevrolet Silverado 1500 XFE
2019 Chevrolet Silverado 1500 LD Custom
2019 Chevrolet Silverado 1500 LD LT
2019 Chevrolet Silverado 1500 LD 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
1997-2000 Ford F-150 Base
1997-2003 Ford F-150 XL
1997-2003 Ford F-150 XLT
2004 Ford F-150 Heritage XL
2004 Ford F-150 Heritage XLT
1997-1999 Ford F-250 Base
1997-1999 Ford F-250 Lariat
1997-1999 Ford F-250 XL
1997-1999 Ford F-250 XLT
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
2005,2014-2018 GMC Sierra 1500 Base
2014-2018 GMC Sierra 1500 Denali
2005-2006 GMC Sierra 1500 Hybrid
2006-2013 GMC Sierra 1500 SL
2005-2018 GMC Sierra 1500 SLE
2005-2018 GMC Sierra 1500 SLT
2005-2013 GMC Sierra 1500 WT
2010-2013 GMC Sierra 1500 XFE
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

  • Earn FAST points on this part!
  • Backed by real-world installs
  • FAST WC Team Approved

MagnaFlow Muffler Mag SS 14X5X8-3X2.5/2.5 C/D

$162.00

Why Drivers Choose FAST of West Chester

  • I can't recommend this place enough. Being able to trust a shop in the performance world is big. The 2hr drive to get there, is worth knowing the job will be done right. Very happy to have found this shop, to
    support my builds going forward.


    Donald Wojnar
  • I recently had the pleasure of working with FAST of West Chester for some performance upgrades on my 2022 WRX, and the experience was nothing short of exceptional. I opted for a Borla S-Type exhaust and Cygnus Coilovers, and the team at FAST nailed the installation, fitment, and setup to a T.


    Adam Cranston
  • The team at FAST are excellence in every way. First, I consulted with Dave on mods for my HPDE track car. He listened and advised me on the best parts & mods to achieve my goals. He was patient & gave me space to research the options presented & worked with me through several changes before we built. Second, the build execution was flawless, proper heat shielding, bracing and poly everywhere. All components worked as advertised.


    Bryce Budd
  • This place has been my go to shop for all things Subaru. From simple service to performance parts and tuning, they have been top notch.


    William Brunell
  • Excellent shop. They installed a Cobb Stage 2 DP and Whiteline Sway bars and end links on my 2013 WRX. The work was done right and clean. The estimate was accurate. They were very knowledgeable, friendly and gave me the straight scoop on exactly what I was getting for the money
    and what I needed to get where I want to be with it. I'd recommend them
    to any car enthusiast.


    Devin Greco
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Does it come with a warranty?

Most products we carry include a manufacturer warranty. Since we work with top performance brands, warranty coverage can vary by product. If you have questions about a specific item, reach out — we’re happy to help.

Do you offer installation help or advice?

Yes — we don’t just sell parts, we install and tune them too. FAST of West Chester is a real performance shop, and we’ve worked hands-on with many of the products we carry. If you have questions about fitment, installs, or building your setup, our team can point you in the right direction.

How fast is shipping?

Many of our products ship the same day or next business day, depending on availability. We work hard to get parts out fast so you can get your build moving without delays.

What’s your return policy?

Returns for exchange or refund are accepted within 30 days of receiving your order. Items must be in new, unused condition and in original packaging. If you have any questions, our team will help make the process easy.

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