Dave Harryman's MRD has been manufacturing high performance components for different types of racing engines for over 35 years. Our SS exhaust systems are track and dyno proven to outperform stock and other aftermarket exhaust systems and are built to stand up to hard racing conditions. I fabricate some of the best pipes in the industry completely in-house no stamped out mass produced bling 

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MRD will fix any properly maintained pipe that cracks any weld for a period of 1 year from date of purchase. Note: mufflers require re-packing every 50 hrs of hard use. Running your muffler with blown- out packing or using header wrap will cause it to overheat and weaken resulting in premature failure and voids the warranty. please clean pipes before sending them in for repair ,  include $35.00 for new packing and applicable return shipping $