No disadvantage what-so-ever. Front tire clearance can be a slight issue when running 17X9 wheels and 275 series tires, but all-in-all its not a big deal and a small spacer can usually fix it. I would look at a quality coil-over kit from MM before I'd buy the UPR setup. I've run both the strange and MM coil-over setups on my cars and the MM setup is the best I've seen. I have no rattles/noises and I run a very stiff setup with them.
Kurt I'll let you know how mine turns out. I run 255's on the front
Of course you don't NEED 4 bolt C/C plates, but it is best and would be wise to used them. All of the weight of the front of the car including any cornering and spring tension forces is now being held by the C/C plates instead of the K member. The stronger the better
I'm not convinced the 4 bolts are any stronger. It's probably just a gimic to be honest with you. More likely the metal will twist, or the bearing will pop on it before the bolts do. They are only a strong as their weakest point.
Kurt
You going to run Fox control arms too?
Kurt
No disadvantage what-so-ever. Front tire clearance can be a slight issue when running 17X9 wheels and 275 series tires, but all-in-all its not a big deal and a small spacer can usually fix it. I would look at a quality coil-over kit from MM before I'd buy the UPR setup. I've run both the strange and MM coil-over setups on my cars and the MM setup is the best I've seen. I have no rattles/noises and I run a very stiff setup with them.
I have the cobra 17x9 rim on the front and I did the koni struts with steeda coil over kit. I had to put a wheel space in because my tire was just touching the coil.
What's a good spring rate to go with? I was thinking 350# or 375# when I eventually switch to coil overs.
This car will be driven on the street fairly often....