Lower Stress Bar Group Buy

[JP-s-in st. louis]

I honestly would like to try these but really how much of a difference do these make? And what is the difference between the 1 bar and all 3 bars?

[Kirk]

Originally Posted by JP-s-in st. louis

I honestly would like to try these but really how much of a difference do these make? And what is the difference between the 1 bar and all 3 bars?

For daily driving I don't think you'd notice a difference, which probably is a good thing. The difference is with aggressive driving and track days. The lower stress bar was originally developed by Mantis Motorsports for their race Cayman. Insite on our board here picked one up, installed it on his 986, tracked it, and documented the improvements in the original post. Check out the first couple pages of the original post and you'll see some of these details.

Here's specifically what Mantis says about it on The Cayman Club:

"Designed to eliminate and reduce camber/toe change due to rear suspension mounting castings flexing. This caused by the fact that castings are only mounted to the chassis at the top. They are not connected at the bottom other than the aluminum transmission plate, now with a 1" bar between the two castings no more flexing. Also if you cannot adjust camber evenly, by twisting the stress bar heim ends , you can shift the castings side to side. The alignment guy will like that."

The side bars are just more of the same thing - strengthening and stiffening the suspension at the bottom. I don't have any track data though to quantify how much of a difference you get with the side bars.

Kirk

[Kirk]

I'm going to close the group buy tomorrow (Friday) at noon and get the parts on order. If you have not sent payment or received a personal message/e-mail from me directly stating that I received your payment and have added you to the list, then you're not included in the group buy. To get on board, simply send me a PayPal payment at kbristol@lycos.com

Kirk

[Kirk]

I placed the order for parts today. I'll follow up with everyone who has an order in by e-mail. The group buy was split exactly 50/50 between main bars only and complete sets. So I've also ordered 3 extra main bars and 3 extra complete sets.

[dcporsche99]

Thanks for the update!

[Topless]

Hey Kirk,

How is your lower stress bar production coming? My first AutoX is next weekend and I am curious if it will be with my all new tighter rear end.... Somehow that didn't sound right!

Do you have a planned ship date?

[Kirk]

The lower stress bars should be going out the first week of March (next week). They're in transit to me now, I've got shipping tubes, mounting hardware, and instructions also all ready to go. Unless something got screwed up with the order (specs or plating), then everyone who ordered them should have them in their hands shortly. I just sent out an update about a week ago to all those who had confirmed orders for bars.