COBRA NH 4" SHORT SLIP ON MUFFLER HARLEY DAVIDSON SOFTAILS 25-26 SPUTHE Large volume sump

Large volume sump

Increasing the size of a Milwaukee-Eight® engine is easy with Zipper’s Big Bore Cylinder Kits

The Cut Off Sleeves Keep You Cool and Comfortable Even in The Summer Heat

combined with a radiused inlet and unique S&S stinger allow smoother

COBRA NH 4" SHORT SLIP ON MUFFLER HARLEY DAVIDSON SOFTAILS 25-26 SPUTHE Large volume sumpCOBRA NH 4" SHORT SLIP ON MUFFLER HARLEY DAVIDSON SOFTAILS 25 26 NH 4 INCH SLIP_ON This large (4 inch round body) NH Softail slip on starts with a 4 inch round black body. It features a 4 inch billet aluminum black outer tip with distinctive machined dual grooves and the black body uses a gloss black inner tip. Those inner tips echo the original NH form creating a strong visual resemblance and sonic similarity with the original versions. The short