Harley Davidson Exhaust Torque Cones

Anti-reversion cones are a device you put into your head pipes near the cylinder head to discourage reversion ie.

Harley davidson exhaust torque cones. In the 96 Harley moved away from it in favor of new gaskets if I recall correctly sure Ill get corrected if Im wrong. Exhaust torque cones for Harley motorcycles to reduce reversion and improve torque. Torque cones are used to prevent this from happening.

Flat-woven stainless steel design that does not compress into or block the exhaust port improving flow out of the head into the exhaust header pipe. Kuryakyn 9155 Motorcycle Exhaust System Accessory. 4 Mar 12 2013.

Shop our complete selection of Harley-Davidson Motorcycle parts and accessories including the V-Factor Exhaust Port Torque Cones - 95115. Drag pipes have no backpressure and as a result you will lose from 10-15 of fuel etc. Insert the small end of a torque cone into each of the two exhaust pipe openings until the flange on the cones comes against the flange on the exhaust pipes.

A positive pressure wave in the pipe that interferes with cylinder fill if it arrives during overlap. Made from stainless steel wire mesh and impregnated with graphite for a positive seal. Simple installation requiring no permanent modification.

I guess it probably helped a little but nothing spectacular. AfterMokit Replacement Steel Exhaust Port Torque Cones for Harley Davidson Big Twin Evolution Twin Cam 1999 and Up Sportster Evolution 1987 and Up with 1-34 inch OD Header Pipe Raw finish 2 Pack 1799 17. Expert Gear Advice From Riders.

Exiting exhaust gasses are sometimes pulled back into the engine by descending piston before exhaust the valve closes. Expert Gear Advice From Riders. I used the torque cones years ago on a bike with a 96 SS and drag pipes.