Been a lurker here for quite a while and finally decided to post. There hasn't been a lot of activity here for a while but maybe this post will help generate some good discussion. Hope this isn't too long winded but first some background - I've been autocrossing for a couple year and in my base non-Brembo 2014 for the past year in F Street. Not ideal as my base model only came with 8" wide wheels so have been running 245 wide Bridgestone RE71Rs. I'm not on the pointy end of the driver performance spear and probably never will be (didn't start autocrossing until I was 66 so a late comer to the game) but I thought I might throw a little money at my existing ride to make it more fun to drive and run in either STU or CAM-C (since STP is now defunct). Both classes are fiercely competitive in my region, but then so was F Street. Oh well, it is still fun trying. I've got Koni SA on the car now with a Steeda competition 33mm 3-way adjustable front sway bar and the car seems to drive pretty well for what it is. But let's talk about suspension upgrades for autocross in the order of springs/shocks/struts/coilovers, rear control arms, sway bars and then watts links. I will be running either RE71R or Rival S in 275/35 or 285/35 on 10" wide wheels (either 18 or 19's). First off springs/shocks/struts. Seems a lot of people go with a set of lowering springs and Koni sports (which I already have). But I have driven cars with really good shocks/struts and I liked them a lot. So lets start out talking about good SA coilovers. I see Eibach Multi-Pro R1 and MCS TT1 in my price range. Both are single adjustable but the R1 with springs is about the same price as the MCS without springs. Both would need to be paired with a good camber/caster plate. There is also the Ground Control package with shortened Konis and their own camber plates. Anyone here running any of these in autocross and want to share your experiences? What are the pros or cons of each and are there any others in this price range I should also be considering? I would like to put these on and run with my existing sway bars to start if that is at all feasible, then build the control arms and sway bar setups around them as a next step. Can I lower the car with these, say about 1.5" and use the stock rear control arms while I am figuring out the next steps, or will I need to go with at least adjustable lower control arms and relocation brackets from the start? Let's have some good discussion and help me plan out how to best spend my money, after all it's always fun to spend other peoples money.