I'd get used to the stock setup first before upgrading the exhaust etc. Work on getting it tuned right and learning how different adjustments affect the truck. Once you're comfortable then upgrade the engine. Read through this thread if you haven't already . [link]http://www.rcuniverse.com/forum/m_4207842/tm.htm[/link] Like my brother inlaw said the alum pipe on my sons Volcano made a slight power boost but it almost sounds a little Quieter. Look into buying a steel HPI clutchbell Gears will last longer. It's in the link. Wlcome and Have Fun!!