"lowering vehicle more may cause ground clearance problems and excessive body roll as the stock sway bars may not be able to keep up."

This is what lmperformance.com says about the Eibach Por Kit for a V6. Do I need to get an aftermarket sway bar? If so, which one?

 

I'll go along with the ground clearance but the body roll sounds like B.S. to me. I'm not familiar with the V6 spring rates but I can't imagine that the Eibach's are softer than the stock springs. Stiffer springs will reduce body roll and therefore help your sway bars. Shocks & struts are a different issue as the stock shocks / struts may have difficulty dampening a stiffer spring.

 

I'd tell anyone with a 4th Gen F-Body to get the largest front bar you can buy. IMO, it is the least expensive, easiest to install, best performance improvement you can make to a suspension. Shocks are a very close second then springs (although you buy springs first and get shocks for the springs, not the other way around) Hmmm, sorta need to do it all at once, don't you? As long as you're swapping springs, there is no better time than then to change the shocks. You don't want to have to take everything back apart again!!! AND, while your at it, while everything is already apart, new suspension bushings would go in quite nicely..... .


Rear bar will just depend on driving style etc. Start with your stock one and see how it feels. Larger the (rear) bar, the more towards oversteer!

 

Whats the best front bar to get and where is the best place to get it?

 

I got mine through http://www.stranoparts.com I got the Suspension Techniques 35mm solid bar ($137 w/bushings on his site).

 

What differences with this front bar make in my suspension?

 

Much flatter cornering and much quicker turn in response. Quick back and forth motions will now have less roll and respond quicker.

 

You can run a 35mm bar and still run F stock right?

Does the 35 bar perform ok with the 19mm rear bar, or would the 21 be a better choice?

(Sorry to highjack your thread zach!)

 

Yes, you can change your front bar in F Stock but not the rear bar.

Try first with your 19mm. You might like it. I have a 21.5mm rear bar that I'm experimenting with. I'll let you know how it works. My initial impression is it's too much but I won't really know until I get my racing tires on. I like my car more neutral than most and I can tell you that right now on street tires, it might be a little too much, especially on quick transients.

I could be wrong here but I believe that 4th Gen F-Body's require less rear bar than the 2nd Gen's I've raced in the past.