I have generic brand all around, I could tell a difference when I first installed them. Front & Rear Upper strut bars and Rear Lower tie bar. I'd like to ad a 19mm rear sway bar also.
yes they help significantly.. tightens up the chasis. i could do 90 degree turns at about 42-43 mph in my coupe with only the front tower, and the rear sway and under tie.
aerospeed is the best for your money but thats just my opion. not a name brand but does get the job done and its not some hollow piece of s**t from auto zone