Sawicki Speed Shop 2-Into-1 Shorty Exhaust For Harley Dyna You don't have to compete in the bagger race league to realize the performance benefits of a US made 2-into-1 exhaust system. Your daily rider will come to life with a good pipe and a tune. The Shorty 2-into-1 exhaust from Sawicki Speed Shop is over 16lbs lighter than your stock exhaust and produces a killer tone! The Big Inch 2-Into-1 Exhaust from Sawicki Speed isn't meant for your stage 1 upgrades, unless you have a minimum of 110 of displacement stick with the standard version. Features: Classic stepped performance headers 1-3/4 primary to 2 for maximum performance Mandrel bent aircraft quality stainless steel tubing Hand formed merge collector allows precise flow performance All TIG welds performed by hand in Charlotte, NC 18mm O2 sensor bungs for aftermarket tuners, accepts 12mm sensors with reducers Fits mid and forward controls Entire system weighs 11bs, 16lbs lighter than stock Note: Sawicki recommends flat mesh race style exhaust gaskets.