Re: Thinking about lowering my car
Depending on the height, you don't have to worry about scraping. The Mustang is super high. I did FRRP 1" drop. Looks great. Handling from springs is an interesting topic.
Often times, lowering the ride height itself doesn't make the car handle better per se. What it does is it allows you to push the car to what it could already but without excessive lean, you are more confident in how hard you push it.
A misconception for decades has been that you lower a car and it handles better. This isn't always true. Suspension geometry is very important. Lean while unwanted, is not always unnecessary. A balance between stiffness and predictability and suspension travel all in the hands of a capable driver are what makes a great race car.
Now, what are your goals? It sounds like you do not road race or auto x much if at all. So, I would say even a 1" drop is a lot. My FRRP springs worked great and did help inspire confidence but they are much stiffer than even the sportlines it is said. So, in that case, you can skip the springs. If you do want inspired handling that you can NOTICE, springs, sway bars and tires will cure the average Joe.
Additionally, lowering your car any amount changes the LCA angle, thus reducing straight line traction. I had a very obvious bad angle right after my 1" drop.
SOLD - 06 GT 371WHP/332WTQ
Sold - 1998 Camaro SS
Sold - 2001 Audi S4