Yes the GTB comes with a fan but it isn't necessary for 4-cell 1/12 work and is EASILY removed. You DO have to leave the heat sink on though as it is potted to the components (FETs?) underneath. Brushless motors are a little tricky to get installed as they don't taper at the endbell end like brushed motors do--it's not unusual to have to remove the top or bottom pod plate to get it in there. No big deal though because once it's in it's in--no where NEAR as frequent motor maintenance as brushed mod motors. Wire routing also becomes a bit tricky as there are three power leads to the motor (instead of the normal two) PLUS the sensor bundle. I found with the GTB/Velociti setup in my Carpet Knife there was exactly one (of six possible) motor "clock" positions that would work.

As indicated above, if you aren't experienced with 1/12 racing there is no reason TO jump into mod and a whole bunch of reasons NOT to. Get a good stock motor and enjoy the track time that 8-minute heats provide!

btw, I've got a SWEET brand new unused Quad-12 for sale in the buy-sell-trade for something under half of what it cost you to build one yourself. See it at http://www.rctech.net/forum/showthread.php?t=101694

Scottrik