Torque cones are used to create a higher velocity of exhaust flow in the exhaust pipe and creates an anti-reversion effect. The value of anti-reversion is a cleaner air fuel burn combustion and a cooler running engine. The larger diameter, (gold) offer excellent mid range performance, killer top end and lots of sound. The smaller, (silver) enhance low end performance and have a great mid range as well. Still less restrictive than running baffling, top end is still strong. This set up also has an aggressive sound, but slightly less than the gold chambers. Install whichever set of chambers best fits your riding needs using the same hardware used to retain the baffles.

Performance pipes with a twist, Jug Huggers have the right mix of air flow and back pressure to make for increased performance and incredible sound.
• The oversized removable heat shield gives the Jug Huggers a 2 ½ inch fat look. • Max-Flow performance baffles and chrome billet aluminum end caps are standard. • Optional sound reducing baffles, or torque chambers give you the option of getting the right performance and sound from your motorcycle. Part Numbers: 22-2103/2 $66.15 1 1/2" Sound reducing baffles 25-0010 $47.56 Torque Chamber Kit 24-2920C/2 $110.25 Replacement end caps This product is designed for use on closed course competition motorcycles only. Click Here for More Information http://www.bub.com/Emissions_Information.cfm