Chevrolet Silveradobefore: 2015 Chevrolet Silverado Exhaust Muffler Bypass, Regular $150 or Stainless Steel $200after: 2015 Chevrolet Silverado Exhaust Muffler Bypass, Regular $150 or Stainless Steel $2002018 Chevrolet Silverado Exhaust Magnaflow Permanent Cutout $3002018 Chevrolet Silverado K1500 LT Exhaust Magnaflow Muffler $400before: 2011 Chevrolet Silverado Exhaust Aftermarket Walker Muffler $300, Walker Heavy Duty $400 or Walker Commercial $500after: 2011 Chevrolet Silverado Exhaust Aftermarket Walker Muffler $300, Walker Heavy Duty $400 or Walker Commercial $500Land Rover →