Alphamatt has a great idea, you could just cover the scratches with touch up paint (Infiniti) but the lip will elongate the profile of your coupe and make it look even better. They come already painted so all you gotta do is install. Best place to order, two choices www.everythingG35.com or Riverside Infiniti ask for Tony 1-800-919-8130 they're both sponsors and give us major discounts....
Gary

 

Like everyone else has already said, it's a matter of being ready to be cautious -- and when you do come across something that looks like it might result in a scrape, slow down and go at it at an angle. Both my driveway and my parents' driveway are pretty steep, and I have the Data System Illusion front lip (which sticks out front a lil' farther than the OEM lip) -- but I don't scrape.

Also, make sure you take the time to teach yourself where the front of the car is. Practice on the side of your driveway, where it turns into grass -- and see how close you can get the front of you car to the grassline without going over. If you learn where the front of your car is, you'll avoid effing up the front bumper and/or lip by not pulling too far forward and smacking the bumper/lip into curbs and median-thingies when parking.

I'm planning on lowering my car about an inch in the future. I think that's about as far as I can go with the driveways I have to deal with on a daily basis.

 

Another thing to look out for.
Driveways that are "broken up" by a sidewalk.
That is, one where there is an asphalt slope,(approx. 3 ft in length) rising 1 ft in height from street level to "sidewalk level", then the flat sidewalk,(approx. 3 ft wide),then the continuation of the sloped driveway.
If I go up the slope from the street to the sidewalk level, the front clears, but if I continue, the underside of my car hits the edge of the (bump created by the) sidewalk.
I can't get up this driveway.

 

eh stock height not much to worry about, just angle it and you're good

 

O HELLA OEM I LOVE your wheels. what kind are they and everything?
thanks

 

Jacking up the car will become a b1tch if it's low enough. My low profile floor jack can't get underneath some parts of my friends lowered TL and we had to drive it up on wood, etc. Make sure you drive slowly over uneven road and avoid potholes. Also, map out where you are going so you don't end up having to go into some parking lot that has a steep driveway entrace. But most importantly, get this and put it on your car:

 

thanks man
there charcoal 19" Tenzo Type M's
i got them from a vendor on here
don@tireoption

 

drive the car up some wood, put jack under, you're good

 

my car is lowered on 350z s-techs. i have the stock oem lip...it never scratches over speed bumps or anything. only the mid section of my exhaust scrapes over large speed bumps. hope that helps.