HawkeyeIS

So pretty much everyone knows the tire wear issue with the IS, mostly the rears. My car not only has a pretty solid wear issue but also doesn’t stay in alignment very well as the roads around are fairly garbage. Anyway, I’ve read a lot about how to remedy the issue and have come to the conclusion that I will be placing:
- new bushings (RR Racing Ultimate Steering Response System R&T - I know they have to be lubed intermittently and a lot of people have gone with RCF bushings but have seen mixed reports of the RCF ones not quite being the answer for some)
- rear camber arms

additionally while I’m at it I’ll be putting in RSR downs and going with new wheels and tires

my question: do I want an adjustable rear camber kit like the SPC Performance Camber Rear Camber Arm-72450 (Here) Or SPC Performance Adjustable Rear Camber Arm (Here)?
I’m fairly new to all of this and am not seeing the difference/advantage of one over the other. Additionally I’m assuming any normal shop can install these and know how to align with them?

any input is greatly appreciated!

Napalvr

Depending on wheel/tire size/offset you won’t need camber arms. I have 19x10 +42 w/265-30s and have never rubbed. Alignment specs with downs will just be inside the outer limit of factory specs. At least my car is. BTW mine is AWD

HawkeyeIS

im just thinking the camber arms will help things stay in alignment and also allow me the correct adjustment in case my wheel/tire choice doesn’t keep camber in spec. I figure at about $350 if it can keep things aligned better that’s cheaper than pre-maturely killing tires.

RRRacing

iTrader: (1)

The 72450 is for the 3IS. the other are for 2IS.

-Justin
RR Sales

Meraki Autoworks

iTrader: (8)

72450 is the one to get, very popular for us among with lowering springs or coils.

-Josh

swaangin

If you're going to get lowering springs, you're going to increase the negative camber (and inner tire wear on the rear).. so you definitely want to get camber arms in the back if that's what you're concerned about.. personally, I haven't noticed much difference in wear after getting springs