Suspension Reinforcement

I just did my struts and shocks with new springs that lower the car about an inch. Its been about 3K miles and the Struts/Shocks/Springs are starting to settle and I feel like the car would handle better with a stress bar/sway bars. Any brands that you would reccomend? Not looking to spend more than 3-4 Hundred.

Eibach pro kit is about $350 I believe. On both the i6 and v8 the rear bar takes no more than twenty minutes to install but on the v8 the front is much more involved than on the i6.

Originally Posted by King 5

Eibach pro kit is about $350 I believe. On both the i6 and v8 the rear bar takes no more than twenty minutes to install but on the v8 the front is much more involved than on the i6.

Do you think it is worth it?

Originally Posted by tohadamjo

Do you think it is worth it?

From what Ive concluded, most definitely yea it is worth it. Adding the rear bar alone will add slight oversteer while adding both front and rear will balance it out to normal. The dilema with "normal" is that with understeer your car will push. Aggressive drivers tend to favor oversteer more than understeer. Ive heard that adding both front and rear sway bars to v8s will cause more understeer than with i6. Im not sure which kind you have. Im planning on adding just the rear bar to my i6 with billy sport/ h&r sport spring suspension. Check the forums and do some more research before you pull the trigger.

You need to determine what you want in terms of vehicle behavior before deciding on what sway bar system to get. If you currently have the sport front sway, then just add the M5 rear sway. If you have the standard front, consider a 540 sport rear sway. These will flatten the handling and change the current understeer into a neutral, slight oversteer condition. And you will avoid replacing the front (not easy). Or get a set with an adjustable rear and dial in your settings.

The cheapest and most popular is to add a used m5 rear sway fom ebay for less than $100.
The larger diameter will require new bushings. I recommend the powerflex urethane sway bushings.

I put the Eibach sway bar kit on my 540i. Got a good deal on a new kit on Craigslist but my indy shop charged me for 3 hours of install time even though it took them 4-5 hours. I understand that they have to drop the sub-frame to get it in. feels great but unless you are auto-crossing, it's probably not worth doing on a 540i. Not a significant change.