Hello everyone Im new on here and having issues with fitment for wheels.I have a 07 civic si sedan on eibach prokit springs. Im looking into getting the Avid AV 06 in 18X8.5 it says fitment available with 35et and 42 et. Would I need some fender rolling and what tire size would you recommend. Any help would greatly be appreciated thank you. I tired using the Tire/Rim Calculator but didn't fully understand it.

 

Without knowing what year/make/model of your car, nor what you have done to it... makes answering this question pretty much impossible.

 

Sorry about that I have a 07 civic si sedan lowered on eibach pro kit springs. Everthing else is stock.

 

Running the +35 offset version, you'll be able to fit a 225/40/18 with minor fender work.

 

Seems like +35 offset would fit just fine. I used willtheyfit.com to compare wheels and offset (assuming your stock wheels are 17x7 w 215/45 which is what google said is stock).
If anything you'd need very little rolling, or if going for a big drop take the plastin inner wheel wells off.