Meanwhile, in 1-quart saucepan, heat brown sugar, 3 tablespoons butter, the corn syrup and salt to boiling; boil 1 minute. Stir in whipping cream; cook 1 minute. Remove from heat; cool 10 minutes, stirring occasionally. Drizzle caramel sauce over bars; sprinkle with pecans. Cool completely in pan on cooling rack, about 1 hour 30 minutes. Use foil to lift from pan. Cut into 4 rows by 4 rows.