I have a lowered '99 c2 with:
Front: 18x7.5 et50 with 225/40 tires
Rear: 18x10 et65 with 265/35 tires

The car was lowered by the previous owner but I don't know by how much. All I know is that it isn't H&R.

Attached are pics that may help. I'd like to get the "fullest" look possible without them sticking out looking like a ghetto vw. Help would be appreciated!

Front:






Rear:

 

~15mm should do the trick. This will produce the an aggressive stance of an ~50ET 18X10. I am currently on 19X10; 52ET, and love the stance.

 

Thank ruben, are you saying 15mm all around or just the rear?
I hear 7mm front and 15mm rear is pretty popular.

 

Yup i did 14mm FRONT and i have different bigger wheels.. PS: you need to just do new wheels all around man- 19"s

 

15mm at the rear only. Good luck. FYI, I am fairly sure you may require longer lug bolts (stock +15mm)

 

So should i go lower like 7mm in the front?
I should add that I have the gt3 alignment specs. I don't know anything about camber etc. but maybe someone will chime in on how this will affect the spacers.
I'm tempted to try 18mm in the rear.

 

Is doing a new wheel setup, completely within specs and fitment you want out of the question?

 

Unfortunately yes, I've got other priorities for the car right now.
Maybe in the future I'll get new wheels!

 

I would suggest going with the 7 mm in the front and 15 mm in the back, I'm not sure if 18 mm will fit with out any issues. I would also suggest getting an alignment after you put the spacers on. For more information on our H&R spacers Click Here

 

Great, thanks for the advice!
Anyone have experience with rolled fenders?
Does doing this give it a meaner (wider) stance closer to a WB or is it just dumb to do?

 

I think that's going to be hard to achieve since the WB has more to do with the rear body panels of the car versus the stance. You will get a wider stance with spacers, but it will still look like a NB 911. I wouldn't do anything extreme to compromise the performance and handling to be honest. Get a decent stance with the wheels you're running. If money isn't an issue...move up to 19's.

 

looking to upgrade your corroded Lugs as well? Let us know!

 

Update: I just ordered 7mm fronts and 18mm rears from Junior at Adaptec (a fantastic guy!).
18mm will probably be too much but I'd rather start wide and make my way down to get the perfect look.
If it's too much or looks dumb I'll just go with 15mm but I'm counting on my 265/35 tire to pull it off.
They should be here by the end of the week, pics to come!

Meanwhile, here pics of user porsch3's setup to get an idea of what it might look like:
18x10 et65 285/30/18's on the rear with 15mm spacers. Car is lowered:

 

Where did you get the longer lug bolts from?

 

Adaptec sends them with the spacers