Looking for aftermarket parts to modify or upgrade your 2003 GMC Sierra 1500 HD with exhaust, mufflers & tips? At Tunersports.com we carry a huge selection of the top name brand performance exhaust, mufflers & tip parts and accessories for your Sierra 1500 HD.
Whether you have a 2003 GMC Sierra 1500 HD in SLE to SLT trim we have you covered. With exhaust, mufflers & tips from catalytic converter direct fit to headers & manifolds we have 22 Sierra 1500 HD exhaust, mufflers & tip mods available. All parts have free shipping to the Continental US 48 States.
 IN STOCK - LOW JBA Cat4Ward Headers 1850S-3JSJBA 03-06 GM Truck 6.0L LS w/o EGR 1-5/8in Primary Silver Ctd Cat4Ward Header $799.95
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 IN STOCK - LOW JBA Cat4Ward Headers 1850S-3JBA 03-06 GM Truck 6.0L LS w/o EGR 1-5/8in Primary Raw 409SS Cat4Ward Header $641.45
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 IN STOCK Victor Reinz Exhaust Manifold Sets MS16124MAHLE Original Buick Allure 09-08 Exhaust Manifold Set $34.74
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 $390.00
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 IN STOCK - LOW Magnaflow Universal Converter 99209HMMagnaFlow Conv Univ 3in Inlet/Outlet Center/Center Round 9in Body L x 5.125in W x 13in Overall L $178.00
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 IN STOCK - LOW Gibson Headers - Stainless GP500SGibson 02-06 Cadillac Escalade Base 6.0L 1-5/8in 16 Gauge Performance Header - Stainless $641.03
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 IN STOCK Gibson Headers - Ceramic Coated GP500S-CGibson 02-06 Cadillac Escalade Base 6.0L 1-5/8in 16 Gauge Performance Header - Ceramic Coated $762.38
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 IN STOCK Cometic Gasket Exhaust Gaskets C5818-030Cometic GM LS1 5.3L/5.7L/6.0L .030 inch MLS Exhaust Gaskets (Pair) $55.07
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 IN STOCK BBK Short Tuned Length Headers 4006BBK 99-04 GM Truck SUV 6.0 Shorty Tuned Length Exhaust Headers - 1-3/4 Titanium Ceramic $499.99
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$390.00
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IN STOCK BBK Short Tuned Length Headers 4006BBK 99-04 GM Truck SUV 6.0 Shorty Tuned Length Exhaust Headers - 1-3/4 Titanium Ceramic $499.99
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IN STOCK Gibson Headers - Ceramic Coated GP500S-CGibson 02-06 Cadillac Escalade Base 6.0L 1-5/8in 16 Gauge Performance Header - Ceramic Coated $762.38
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IN STOCK - LOW Gibson Headers - Stainless GP500SGibson 02-06 Cadillac Escalade Base 6.0L 1-5/8in 16 Gauge Performance Header - Stainless $641.03
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IN STOCK - LOW Magnaflow Universal Converter 99209HMMagnaFlow Conv Univ 3in Inlet/Outlet Center/Center Round 9in Body L x 5.125in W x 13in Overall L $178.00
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IN STOCK - LOW JBA Cat4Ward Headers 1850S-3JBA 03-06 GM Truck 6.0L LS w/o EGR 1-5/8in Primary Raw 409SS Cat4Ward Header $641.45
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IN STOCK - LOW JBA Cat4Ward Headers 1850S-3JSJBA 03-06 GM Truck 6.0L LS w/o EGR 1-5/8in Primary Silver Ctd Cat4Ward Header $799.95
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