The Swift springs are definitely the way to go. The E36 bump stops are optional and not a must have. Rake will not be a issue so no need to worry about that. The amount of drop is spot to what Swift advertises. My car actually looks lower when I have my 18" track wheels on. Just had someone ask me over the weekend if I got my car lowered (still have my track wheels on from a recent track day)........Phil
http://www.m3post.com/forums/showthread.php?t=1075755
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2016 GT4.....Sapphire Blue Metallic, Platinum stitch Leather/Alcantara interior, Carbon Fiber Trim, PCM w/Nav, Guards Red Belts, 2 Zone Climate, Sport Chrono, LWB, Smokers Pack, Big Gas Tank, Light Design Pack, Bi-Xenon w/PDL, Auto Dim Mirror, Clear Side Markers, GTS Clear Taillights