Too Stiff

[LimaCharlie]

Originally Posted by StlRomAniaN

I have a question for you all. Was the front endlink for the FE4 suspension upgraded from a 10mm to a 12mm?

If so, that's good because I have those endlinks at home. The only issue is that the mounting point/hole on my Pedders Xa coilovers is 10mm. This may be a dumb question, but what size hole do I need to drill? 12mm bit to enlarge the existing hole? I'd just like to double check prior to mistakenly making the hole too big. I would hate to have a rattle, etc.

Yes, the FE4 suspension (2012-2015 SS) has 12mm end link studs. The FE3 (2010-2011 SS) had 10mm studs.
Not sure about the drilling part but a 12mm bit should be fine.

[StlRomAniaN]

Originally Posted by LimaCharlie

Yes, the FE4 suspension (2012-2015 SS) has 12mm end link studs. The FE3 (2010-2011 SS) had 10mm studs.
Not sure about the drilling part but a 12mm bit should be fine.

I guess I can just measure the hole in the sway bar with a caliper for reference.


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[StlRomAniaN]

I'm definitely going to purchase the FE4 SS front bar (23mm solid). I believe the part number is 22875934.

However, I'm on the fence on what rear bar to get. Initially, the plan was the ZL1/1LE bar (28mm solid) to keep the +5mm bias. I see the part number as 22786260. Now I'm thinking about getting the Z/28 rear bar instead (26mm solid; 22812943).

If I'm not mistaken, the OEM FE3 suspension came with tubular 23mm front & rear sways and the car was very compliant. My fear with the 28mm bar is that it won't be soft enough to make a difference compared to the 32mm bar on the car now. If the car was good with a 0mm bias stock from the factory (with stiff Xa coilovers), I feel like a +3mm bias along with the new FE4 rear mounting points should make it easier to push without losing traction.

Thoughts? I'm just thinking aloud.