I do not know if there is one in the GTA.
However, if you contact Jay from Stancefactory, you can get the information of where he got his steelies widened.
www.enthusiastauto.caNeed a car???
--'00 BMW ///M5 .:Jet BLK/BLK:.Individual- Modded
--'07 BMW M5/6.:Indianapolis Red
'91 BMW 850i J Spec Modded
'88 BMW 635CSi Lowered
'81 MB 500 SEC Koenig WILD RIDE