duraiaras

Couple of issues with compatibility and fitment:

Lowering Springs
Called a few places RS-R, Stillen, CarID and emailed few sellers in eBay to check the compatibility and finally bought RS-R T176D lowering springs.
Took it to the shop to install (ac-mn.com) and the tech called me back saying this wont fit and I need T171D. Tech said he called RS-R and verified T171D is the right part.
I'm confused now what part to use. The shop says this tech is the best in the shop to install lowering springs and I also know this is the best shop in the area which does these kind of jobs.
I browsed this forum so many times before I purchased this. I would appreciate anyone you has done this for 2015 F-Sport AWD to confirm the part #.

Tower Strut Bar
Also, I bought tower strut bar Tanabe TTB170F and the driver side mount just wont align with the suspension bolts. Shop says we have to put the car on lift, remove the suspension and there could be some ply to put it on or they could do a very slight modification to the mount hole and get it in. Just can't seem to put it when the car is parked as in instruction manual.

I hope I explained the issues well. Any help is appreciated on the correct part #'s from the members who installed these on this particular model.

Enlighten me if I I missed something.