You will scrape on bad transitions and inclines. I know without having lowered the car and with just the stock wheels. With stock springs and wheels, and the Bruizer kit, I scraped the front really badly twice, requiring it to get some filing and repainting. Now I have air suspension and I haven't scraped anything bad enough to notice (I've been veeerrrry careful). If you're worried about scraping, don't lower it with the Bruizer kit.
RN
See Mephisto
