I'm thinking about installing my eibach springs and throwing on some spacers till I get my CV1s.

I'm afraid of vibrations and issues associated with spacers though. Does anyone have recommendations of the best size and brand to go with for the 18inch non-sport rims on a G37 coupe?

I know hubcentric 20mm front 25mm back is pretty good for AWD which should be same for non-sport coupe.

But what brand is proven? Ichiba, Eibach,

 

H & R

i've installed 2 set's with oem sport wheels and no vibrations at all

 

^ What Wei said.. I've heard good things about H&R spacers.

From first hand experience I have Project Kics spacers with built in studs and they are also very good with no vibrations.

 

+3 For HR spacers I have 20 MM all around X Coupe 18's.

 

if installed right h & r should have no problems. just use fine sandpaper on the hub and behind the whee,l basically everything the spacer would touch. remove all rust. clean area, use a good torque wrench. you should be vibration free

 

Will most car performance shop know what to do?

Do I need to tell them what to torque it at etc..

 

uhhh putting on spacers is as easy putting on your tires. even easier because you don't have to lift a heavy tire. and i believe it's 80 ft/lbs.