S13 front fender wells honestly suck. theyre quite shallow and youll run into clearance issues very quickly when you start running anything wider than a 7.5" wheel and you drop the car. i run 17x8.5 on a 225 upfront and my wheels rub my fender wells.
the tubs will prevent a lot of clearance issues, and they look like they were done properly (especially with the added brackets linking the strut tower to the tubs).
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