9155 Ar power cones

These Kuryakyn Ar power cones are a smart addition for riders looking to dial in their exhaust performance. Sold as a pair, these anti-reversion cones are designed for 1-3/4 inch head pipes and work by preventing exhaust gases from re-entering the cylinder during the exhaust pulse. This is particularly effective for improving peak torque and smoothing out the power band. They fit most 1984 to 2025 Big Twin models and 1986 to 2022 Sportsters. Whether you are running drag pipes or a high-flow system, these cones help maintain the necessary back pressure for optimal engine efficiency and a crisper throttle response. They are a simple, hidden upgrade that makes a noticeable difference in how your Harley pulls through the gears.