LEGO 8146: Nitro Muscle | Brickset: LEGO set guide and database
BrickLink - Part 44352pb04 : LEGO Technic, Panel Fairing #22 Large Short, Small Hole, Side A with Nitro Mascot and N2O Bottles Pattern (Sticker) - Set 8146 [Technic, Panel, Decorated] - BrickLink Reference Catalog
LEGO 8146 Nitro Muscle Set Parts Inventory and Instructions - LEGO Reference Guide