SP Concepts
SP Concepts Exhaust 2006-2017 Dyna – Big Bore 4.5
- SP Concepts Exhaust 2006-2017 Dyna – Big Bore 4.5
- 4.5” high flow performance rolled cone muffler with stepped baffle from 2-¼ to 2-½ inches. Increases bottom to mid-range torque and horsepower on all motors. Tuned properly can accommodate 88″ to 143″.
- 065 stainless steel headers, stepped from 1-¾” to 1-7/8” to 2” 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 autotune sensors.
- Complete hardware kit with everything you need to mount it up.
- Free Shipping
Price range: $1,163.03 through $1,357.03
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