FMF Megabomb Stainless Header For HUS KTM 045606 Alpinestars 2025 Clamp Area Sweep Control Area 252 520 15GP 112U 520 50GESI C416 Clamp Area Sweep Control Area Carmichael 800 77 40 195 55 180 Henry Reed 800 92 66 206 57 180 Pastrana MX RM Low 800 74 56 203 55 180 Windham RM Mid 800 99 74 219 53 180 Factory Suzuki KTM Stock 800 92 62 217 47 180 Woods High 800 97 69 211 65 180 CR High 800 95 71 204 60 180 YZ High 800 84 56 202 52 180 Steering Damper Low 800 69 38 217 47 195 SX Race 800 87 54 That O ring keeps oil from leaking down the shaft between the counter shaft and the spacer bushing Make Model Year HUSQVARNA FC350 16 17 HUSQVARNA FX350 17 KTM 350 SX F 16 17 KTM 350 XC F 16 17 Constructed of extremely lightweight materials