R&D can't compare to the overwhelming real world uses accumulated by the M5b community. Oh yes those engineers, guess how many of us had engineering degrees. I wouldn't add spacers for cosmetic reasons, but going wider up front dictates it unless you custom build your rims.
Liqui Moly 10W60 Race Tech GT1 Engine Oil, Pentosin MTF2, Mobil1 Full Synthetic ATF Steering Fluid, ATE Super Gold Brake Fluid
Style 65 18x9.5" Squared 275/35/18 Dunlop Direzza Z1 Sport Star Spec, 3mm Front Spacers, Turner Motorsports Extended Bolts
Genuine BMW Rotors, Pagid Yellow RS 19 Endurance Racing Compound, Titanium Backing Plates, Open Brake Ducts, FTE Lines
Intrax Racing Springs, Bilstein B8 Monotube Dampers, Ground Control Camber Plates, Dinan Strut Tower Brace, Dinan Rear Sway Bar, X5 Thrust Arm Bushing
Is Nothing Without Control, Stock Motor Dyno'd @ 341WHP, 319LB-FT Dynojet.
email@example.com Englishtown, Lime Rock Park 1'09.9", New Jersey Motorsport Park Lightning Circuit 1'23.420", Thunderbolt Circuit 1'44.2", Watkins Glen International *tbd, Monticello Motor Club *tbd.
Bell SA2010 Sport Helmet, Sparco Tornado Racing Gloves, Sparco Speed+ Racing Shoes, OMP Balaclava
Style 66 17x8, 17x9 Staggered 235/45/17-245/45/17 Bridgestone Blizzak WS70 Studless Snows
E60 SSK, ZHP Shift Knob, MK4 Navigation, Umnitza VXX Angle Eyes, Brushed Aluminum Trim Swap
Favorite Quote: "Understeer is when you hit the wall with your front end. Oversteer is when you hit the wall with your back end. Horsepower is how hard you hit the wall. Torque is how far you move the wall when you hit it. "