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Old 30-04-2009, 09:35 PM   #33
Cosmo Dude
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Join Date: Dec 2002
Location: Location: Vic
Car: Mazda '95 Astina I4, '86 B2K and '10 3 MZR-CD
Posts: 7,888
Legally you can increase wheel diameter by up to 1" and width by 0.5"
The V6 has factory 16"x6.5" so 17"x7" is about as big as you can legally go without an engineers report. Practically though 205 tires are what will fit between the guards if you don't want to do a lot of number crunching and chasing rims with perfect offsets.
BTW, it doesn't matter if you have an I4 or V6 the chassis is the same.
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