MAHLE Original Chevrolet Silverado 2500 Hd 13-11 Head Set 2005-buick-century-esi3482862 multi-layer sound suppression materials packed

multi-layer sound suppression materials packed into each of these mufflers

Proven 5 whp and 7 wtq bolt-on power increase for stock vehicle

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Rear Spring Rate (Tender/Main) 76 lb

MAHLE Original Chevrolet Silverado 2500 Hd 13-11 Head Set 2005-buick-century-esi3482862 multi-layer sound suppression materials packedCylinder Head Bolts Not Included; Cylinder Head Bolt Replacement Recommended This Part Fits: Year Make Model Submodel 2011 2016 Chevrolet Express 2500 Base 2011 2016 Chevrolet Express 3500 Base 2011 2016 Chevrolet Express 3500 LS 2011 2016 Chevrolet Express 3500 LT 2015 2016 Chevrolet Silverado 2500 HD High Country 2011 2016 Chevrolet Silverado 2500 HD LT 2011 2016 Chevrolet Silverado 2500 HD LTZ 2011 2016 Chevrolet Silverado 2500 HD WT 2015 2016