2.75 Big Straights w TIPS 2.75” BIG STRAIGHTS WITH HARD-TIPS Features Large diameter drag pipes let the world know you mean business Outer pipe measures 2.75” diameter; 1.75” inside pipe diameter on most models Feature CNC-machined straight-cut Hard-Tips billet end caps Customize with optional CNC-machined tapered or slash-cut Hard- Tips. Optional perforated or straight-thru baffles also available to change sound and performance