Some notes regarding the anti-sway bars that I installed and their settings. For those not familiar with anti-sway bars: Unlike the stock sway, which has only one hole, after-market sways typically have 3. The one closest to the main bar is stiffest, while the one furthest is softest (I've been told that in GMG the softest hole has the same level of stiffness as the stock car.). As you move to a stiffer setting, as expected the car will roll less in corners; however, there is also an undesirable consequence, and that is the suspension itself becomes stiffer & ride suffers--street bumps, etc., will feel worse.
While it was initially recommended to me that the sway setting be full soft front & full stiff rear (to reduce understeer), my wise and patient installer
http://www.lucentmotor.com/ feels that this is not necessarily the best and recommends the middle setting for both front and rear.
To make a long story short, Tom the owner of Lucent set the sway bar both ways for me to try (why a patient and nice installer is a most beautiful thing
), and I've found his prediction to be spot-on. With full soft front, full stiff rear, the front feels soft and loose and the rear punishingly bone-rattling hard.
I've gone back to Atomic80's thread on this topic to look at the pictures he posted. Interestingly enough, his installer set it the same way: middle setting both front and rear. (Keep in mind mine is GMG made by Eibach, Atomic80's I think is H&R, and I don't know how they behave relative to each other.)
Enclosed is a picture of the end of the sway bar with the 3 holes. I bought GMG only because initially I was going to pair it with the GMG spring, other companies like H&R also make after market sways.
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Ad material from GMG
http://www.gmgracing.com/porsche_suspension.shtml
GMG WC 997TT Sway Bar Kit
MG has worked with Eibach to develop the GMG WC sport sway bar kit for 997TT owners. The sway bars are 3 way adjustable front and 3 way adjustable. Rear sport sway bars are over 50%, front 30% stiffer than the factory bar's and are supplied with urethane bushings and offer the most tensional rigidity on the market today. Will work with stock suspension or coil over kits. Designed specifically for the 997TT these bars are a direct bolt on replacement with no need for additional sway bar end links. There are also no problems with front axle clearance like with other sway bars on the market.
Sold as front and rear set only.
Price: $695.00 per pair