4.5" Oversized 450 Titan Slip-ons Mufflers 17-22 Touring. Chrome. Bigger is better. At the same sound level a larger volume muffler can flow more gasses than a smaller one. The Oversized 450s come with a 4.50" outside diameter and a 2.50" perforated core fiberglass wrapped baffle. This will pass more gas and do it with a deeper rumble also. The slightly tapered and fluted CNC machined billet end-caps give it that finished look and optional end-caps are available to change the scenery. Compatible with, and great looks on, baggers with extended skirt saddlebags. The 450s are the ultimate... if you like 'em big! Note: Slip-Ons come with stock Oversized 450 end-caps.