Well as some of you may know, I'm in the midst of completing my 07 season TT racer.  Its based off the 04-05 motor and chassis using only the top of the line components. 

Anyways, I am just waiting on my motor to be completed and sent back to me.  Chad @ DRG gave me some great news today.  He had "custom" DRG pistons made specifically for my motor and setup and he sent me the pics today along with the spec sheet on it. 

Stock Bore 450R piston:
True 15:1 two ringer
NEW Forged Side Relief (FSR) second generation forging
lateral gas ported
Tuff Skirt -million mile coated (unlike other spray side skirt coating)
internal and external bracing
brace windowing
3D undercrowning to reduce weight
bridged dual force pin oilers
accumulator grooves
anti-detonation grooves
tuliped extra deep valve pockets
higer compression height for tighter squish
laser etched

Here it is...Guarentee none of you have ever seen an ATV piston like this!!!!