Looking for aftermarket parts to modify or upgrade your GMC Sierra 1500 with muffler? At Tunersports.com we carry a huge selection of the top name brand performance muffler parts and accessories for your Sierra 1500.
Whether you have a 1999 or 2023 GMC Sierra 1500 in AT4 to XFE trim we have you covered. We have 8 muffler available to mod your Sierra 1500. All parts have free shipping to the Continental US 48 States.
 SHIPS FROM MANUFACTURER 54008Monster Performance And Modes price. Improves airflow up to 122 percent. Banks new Monster Sport Exhaust is one cool cat back system! And its low price. Thats way cool. The system slashes backpressure; increases exhaust flow; improves fuel economy and delivers extra power to your rear wheels. Ex... Banks Power 05-11 Ford 6.8/6.2L Truck/Chevy 6.0-6.2L Muffler - 3.5in X 3.5in 2006-2006 GMC Sierra 1500 Denali / SLE / SLT 2009-2011 GMC Sierra 1500 Denali / SLT 2010-2011 GMC Sierra 1500 SLE $299.00 |
 IN STOCK 60679Borla 2019 Chevrolet Silverado/Sierra 1500 6.2L S-Type 3.5in Diameter Muffler 2019-2021 GMC Sierra 1500 Base 2019-2023 GMC Sierra 1500 AT4 / Denali / Elevation / SLE / SLT 2022-2023 GMC Sierra 1500 AT4X / Denali Ultimate / Pro $211.99 |
 IN STOCK 19476MagnaFlow D-Fit kits replace the restrictive factory muffler, while maintaining the OEM piping and tailpipe. The straight through design muffler or muffler delete reduces backpressure creating more power and increasing economy without replacing the entire exhaust system.... MagnaFlow D-Fit Muffler 409 SS 2019 Chevrolet Silverado 1500 4.3L/5.3L 2019-2021 GMC Sierra 1500 AT4 / Base 2019-2023 GMC Sierra 1500 Denali / Elevation / SLE / SLT 2022-2023 GMC Sierra 1500 Pro $201.00 |
 IN STOCK 19491MagnaFlow D-Fit kits replace the restrictive factory muffler, while maintaining the OEM piping and tailpipe. The straight through design muffler or muffler delete reduces backpressure creating more power and increasing economy without replacing the entire exhaust system.... MagnaFlow D-Fit Muffler 409 SS 3.5in 2019 Chevrolet Silverado 1500 6.2L w/o Muffler 2019-2023 GMC Sierra 1500 AT4 / Denali / SLT 2022-2023 GMC Sierra 1500 AT4X / Denali Ultimate $201.00 |
 IN STOCK - DROPSHIPS 19534MagnaFlow D-Fit kits replace the restrictive factory muffler, while maintaining the OEM piping and tailpipe. The straight through design muffler or muffler delete reduces backpressure creating more power and increasing economy without replacing the entire exhaust system.... MagnaFlow D-Fit Muffler Replacement 409 SS 3.5in 19-21 GMC Sierra 1500 2019-2023 GMC Sierra 1500 AT4 / Denali / SLT 2022-2023 GMC Sierra 1500 AT4X / Denali Ultimate $681.00 |
 IN STOCK - LOW 12198MagnaFlow Performance mufflers are 100% stainless steel and lap-joint welded for solid construction and rugged reliability even in the most extreme conditions. They feature a free-flowing, straight-through perforated stainless steel core; stainless mesh wrap and acoustical fiber fill to deliver th... MagnaFlow Muffler Mag SS 14X5X8-3X2.5/2.5 C/D 2005-2005 GMC Sierra 1500 Base 2005-2006 GMC Sierra 1500 Hybrid 2005-2013 GMC Sierra 1500 WT 2005-2018 GMC Sierra 1500 SLE / SLT 2006-2013 GMC Sierra 1500 SL 2010-2013 GMC Sierra 1500 XFE 2014-2018 GMC Sierra 1500 Base / Denali $145.00 |
 IN STOCK 12649MagnaFlow Performance mufflers are 100% stainless steel and lap-joint welded for solid construction and rugged reliability even in the most extreme conditions. They feature a free-flowing, straight-through perforated stainless steel core; stainless mesh wrap and acoustical fiber fill to deliver th... MagnaFlow Muffler Mag SS 18X6X6 3/3 C/C 1999-2003 GMC Sierra 1500 SL 1999-2006 GMC Sierra 1500 SLE / SLT 2002-2002 GMC Sierra 1500 HT 2002-2005 GMC Sierra 1500 Base 2002-2006 GMC Sierra 1500 WT 2005-2006 GMC Sierra 1500 Hybrid 2006-2006 GMC Sierra 1500 SL $145.00 |
 IN STOCK - DROPSHIPS 14221MagnaFlow Performance mufflers are 100% stainless steel and lap-joint welded for solid construction and rugged reliability even in the most extreme conditions. They feature a free-flowing, straight-through perforated stainless steel core; stainless mesh wrap and acoustical fiber fill to deliver th... MagnaFlow Muffler Mag SS 5X8 14 3/2.5 1999-2003 GMC Sierra 1500 SL 1999-2006 GMC Sierra 1500 SLE / SLT 2002-2002 GMC Sierra 1500 HT 2002-2005 GMC Sierra 1500 Base 2002-2006 GMC Sierra 1500 WT 2005-2006 GMC Sierra 1500 Hybrid 2006-2006 GMC Sierra 1500 SL $200.31 |