The objective of this experiment was to evaluate the inclusion (7 and 15%, DM basis) of 2 corn co-products derived from the citric acid industry: Micelio (77% NDF, 0.5% lignin, DM basis) and Raffinate (25.5% soluble sugars, 32% soluble fiber, DM basis) in diets with high levels of flint corn fed to 200 finishing Nellore bulls (initial BW = 396.4 ± 37.7 kg). Animals were blocked based on initial BW and randomly allocated to 25 pens. The control diet contained 11.73% sugarcane bagasse, 67.2% corn, 18% corn gluten feed, 2.07% mineral supplement and 1% urea. The other 4 treatments were Micelio 7, Micelio 15, Raffinate 7 and Raffinate 15. The co-products partially replaced corn in the diets. The parameters evaluated were dry matter intake (DMI), average daily gain (ADG), feed efficiency (ADG/DMI) and carcass traits. The data were analyzed using PROC MIXED of SAS and means were compared by Tukey test considering the block as random effect and treatment as fixed effect. There was no effect of treatments (P > 0.05) on cattle performance and carcass traits. Average values for dry matter intake, average daily gain and feed efficiency were 10.5 kg/d, 1.6 kg/d, and 0.156 respectively. Average values for dressing (%), back fat thickness (mm) and rib eye area (cm²) were 53.79, 2.84, and 64.08, respectively. The inclusion of 7 or 15% of Micelio or Raffinate in partial replacement of ground flint corn in finishing diets does not affect cattle performance