Thanks a lot for the useful info. I am right now shopping for Spacers and I think I am able to find a configuration where I could use my stock lug nuts with my Sports Rays and Open Lug Nuts with my track wheels after changing out all of my studs to extended ARP ones.
For Street
Front:
19x9 ET 47 - Rays Sports
20mm Hub Centric Spacers -
TBD Brand
ARP Extended Studs (+25mm Length to OEM; 75mm)
OEM Closed Lug Nuts w/ Lock
Bridgestone Potenza RE-11 245/40 (Later I might go w/more durable)
Rear:
19x10 ET 30 - Rays Sports
25mm Hub Centric Spacers -
TBD Brand
ARP Extended Studs (+25mm Length to OEM; 75mm)
OEM Closed Lug Nuts w/ Lock
Bridgestone Potenza RE-11 285/35 (Later I might go w/more durable)
For Track
Front:
18x10.5 ET 38 - Enkei PF01
Matte Black?
10mm Hub Centric Spacers -
TBD Brand
ARP Extended Studs (+25mm Length to OEM; 75mm)
Open Lug Nuts -
Extended length Project Kics? Recommendations?
Hankook Ventus R-S3 285/35 (Also check out new Dunlop)
Rear:
18x10.5 ET 38 - Enkei PF01
Matte Black?
20mm Hub Centric Spacers -
TBD Brand
ARP Extended Studs (+25mm Length to OEM; 75mm)
Open Lug Nuts -
Extended length Project Kics? Recommendations?
Hankook Ventus R-S3 285/35 (Also check out new Dunlop)
Summary:
I have to buy:
Wheels
-Enkei's PF01 18x10.5 ET38 (Qty: 4)
Tires
-Hankook Ventus R-S3 285/35 (Qty: 4)
Studs
-ARP Extended Studs (Qty: 20)
Spacers
Z1 Aluminum (Super Cheap), H&R, or Eibach?
H&R comes w/ DRS extended studs, are they comparable to ARP?
-10mm Hub Centric Spacer (Qty: 1)
-20mm Hub Centric Spacer (Qty: 2)
-25mm Hub Centric Spacer (Qty: 1)
Lug Nuts
Project Kics? Extended ones? I don't know which brand are track worthy
-Open Lug Nuts (Qty: 20)