port and polish

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mazda 3 2007 cai,rkm ss,adv. timing mod.....
anyone have it done i need details i wanna bore my 3 out to a 2.5 like t he new mazdas hahaha jp nah i just wanna bore it out and make higher compression i was thinking you know how our car is naturally aspiratered??? wel what if i added individual throttle bodies i mean hondas do that s*** all the time and its less stress on the motor what do yall think imma see bout doing it....
 

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