Nitro Muscle – 8146 lego guide 7 years ago BUILDING INSTRUCTIONS FOR 8146, Nitro Muscle, Power Racers Set Number: 8146 Theme: Power Racers Launch Year: 2007 Nitro Muscle – 8146 File Size – 15.33 Mb Description – BI 8146 NADownload Nitro Muscle – 8146 building instruction Nitro Muscle – 8146 File Size – 15.33 Mb Description – BI 8146 INDownload Nitro Muscle – 8146 building instruction Print Versions Building instructions labeled “NA” or “V39” may be printed on US standard letter size paper Building instructions labeled “IN” or “V29” may be printed on EU standard A4 paper