Question about TPMS

Did all 2006-2007 Speed6's come with TPMS, or only 2007 models? The reason I ask is that I think I may purchase some OEM rims but they were set up with TPMS and will not be shipped with the sensors. I am pretty sure my 2006 does not have TPMS. I know I should check my manual, but call me lazy.

Anyway, if the sensors are not included, will this effect the balance of the rim? I am fairly sure that the rims with or without TPMS will be identical, but have never encountered this before and just wanted to make sure the rims are fully interchangable from model year with or without the TPMS.

Thanks
 
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