XR250R '96 - '04 Stage 1: Excellent mid-range and top-end power increase. Uses stock valve springs and rockers. Fitment Specs: Exhaust Lift: 8.7; Exhaust Duration at 1.00mm: 236°; Intake Lift: 9; Intake Duration at 1.00mm: 236° Choose Stage Stage 1 (XR250R '96 - '04) $309.95 Stage 1 (XR400R '96 - '04) $288.95 Stage 2 (XR400R '96 - '04) $315.95 Stage 3 (XR400R '96 - '04) $315.95 Ships in 3-5 business days $309.95