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|This product doesnt fit any of your saved vehicles||Check Fit for another vehicle|
|Body Height:||6.25 in|
|Body Material:||Stainless Steel|
|Body Width:||11 in|
|Case Length:||22 in|
|Inlet Diameter:||3 in|
|Internal Construction:||Temperature Resistant Acoustical Packing Material|
|Outlet Diameter:||3 in|
|Outlet Location:||Dual Outlet|
|Outlet Type:||Weld on|
|Shell Length:||22 in|
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Comments about MagnaFlow Stainless Universal Performance Muffler, Oval Case Shape, Inlet Diameter - 3 in.:
Like it better than Thrush, Dynomax and Flowmaster.
Could be a difficult install without a custom exhaust.
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Q:Is this muffler a straight thru type?
A:Hi, I'm glad to assist you. This MagnaFlow Stainless Universal Performance Muffler, Oval Case Shape, Inlet Diameter - 3 in. (Part No. 12599) is a straight-through type muffler and feature a free-flowing, straight-through perforated stainless steel core.
Q:Will this fit on a 2003 silverado SS extended cab
A:Hi Cleveland, good question! This part is not an exact fit for your 2003 Chevrolet Silverado SS. We have an alternate Flowmaster Inc. 50 Big Block Muffler - 3.00 Dual In / 3.50 Offset Out - Mild Sound (Part No. 530513) which is an exact fit for your vehicle. URL - http://shop.advanceautoparts.com/p/flowmaster-inc.-50-big-block-muffler-3.00-dual-in-3.50-offset-out-mild-sound-530513/20290830-P?vehicleIdFromReq=171383&isAllVehicle=false&vehicleIdSearch=171383&searchTerm=530513&showTitle=
Q:can this replace oem muffler 2003 2500HD 6 box 6L 4wd crewcab silverado chevy oem now is 3" in 4 3/4 Center to Center. Out let is 3" 6" center to center , 8 3/4 H , 12W, 29 L
A:This MagnaFlow Stainless Universal Performance Muffler, Oval Case Shape, Inlet Diameter - 3 in. (Part No. 12599) is universal and not a direct fit for your 2003 Chevy Silverado 2500HD, some modifications may be required for proper installation. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.