S&S Cycle 550-0699C El Dorado Dual Exhaust System - Chrome with Tracer End Caps helmets-full-face-helmets-street the A-CS technology features a

the A-CS technology features a good level of stretchability of about 30% elongation

thanks to the lightweight MATRYX material that delivers exceptional abrasion resistance

2001-2003 Harley Davidson FLSTSI Heritage Springer

2001-2005 Harley Davidson FXSTBI Night Train

S&S Cycle 550-0699C El Dorado Dual Exhaust System - Chrome with Tracer End Caps helmets-full-face-helmets-street the A-CS technology features aImproved power and torque. Oxygen sensor location same as stock. Includes adapters for use of wide band or stock oxygen sensors. Use two high flow cats to increase exhaust flow while providing just the right amount of back pressure for optimum torque. Relocation of cats to 4 1 2in. mufflers reduces heat on rider. Produces a deep bass rumble exhaust note throughout the rpm range. 4. 5in. billet end caps. J2825 sound compliant. Made in the U. S. A.