Want that classic Harley rumble without dropping months' worth of bike payments? The Cobra 4" 909 Twins Slip-On Mufflers feature a scalloped and smooth-rolled outer tip matched by a scalloped inner tip. That inner tip is part of the constant velocity, spiral-louvered cores that give these mufflers their great performance and the deep, throaty, instantly recognizable sound you expect from your Harley-Davidson Touring motorcycle. There are also no visible outer screws, providing a sleek, stylish look.• Incredible value, blending performance, sound, and style for an unbelievable price• 4" diameter muffler body with 2-1/4" constant velocity, spiral-louvered cores produce a distinctive rumble under acceleration and a gruff growl on the run down
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