Rush True Dual Head Pipes for 1985-2011 Harley Davidson FLH, FLT, FLHTCUT - Harley Davidson FLH, FLT 2009-2011 Available in show-quality chrome or black high-temp double baked powder-coated Head pipes are ceramic coated on both the inside and outside of the head pipes; improving exhaust flow and reducing ambient heat up to 300deg. Lower pipe temperatures are more comfortable for the rider and passenger Heavy-duty, 16 gauge steel, which has 30% more steel than the 18 gauge used by other manufacturers. Thicker steel means longer life and better sound Head pipes are 1-3/4in. in diameter