SP Concepts SPC-6-001 LaneSplitter 2-1 Exhaust Stainless Steel for Dyna 99-05Features & Benefits: * 4in. rolled cone muffler with a 2 coiled perforated baffle for increased torque and a deep tone * 065 stainless steel headers stepped from 1 in. to 1 7 8in. to 2in. at the collector * Hand tig welded from top to bottom * Machined stainless steel header collars * 18mm o2 bungs with 12mm adapters, allows for stock or wideband sensors * Complete hardware kit with everything you need to mount it up Proudly Made in the USA by