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KenYz

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  • Location
    NorCal
  • Car
    '07 OB XTLtd

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  1. I've had an excellent experience with this upgrade. 15K in, and still much better ride and handling. The bilsties are so planted compared to others. ON RIDE HEIGHT: The setup settles over a period of months - down 5-8mm. The springs soften a tad. As previous posts have said, the taller settings on the rear ARE a bit more taut; however, that softens a bit. I've been through nearly all of the settings. Initially, the middle one was great, and it would have continued to be. After settling, front and rear had about 3mm of difference in height at the fender well - though right at first, the rear was 6-8mm higher. I've recently put the rear to the highest position because I added a trailer hitch, and there are much more frequent loads to be carried in my new business. The rear is back to 6-8mm higher. The ride is a bit higher, and there's a minor uptick in that tail bob that we've been seeking to eliminate. Somewhat more squat on acceleration, too. I had tried the highest setting when the setup was new and found it to be pretty nervous. The tail bob this time around - with break-in, is less than 1/2 what it was when the struts were new. RECENT UNRELATED UPGRADE: Replaced the cat-laden, narrow exhaust downpipe with aftermarket (Invidio, or something like that). Dang! Nice difference: much faster turbo spooling; smoother power; more power with the tune ~18% (at sea level); safe boost from 11psi to 17psi. This was the single strongest recommendation from a terrific local tuner: KSpeed in Reno, NV. Boy were they right.
  2. Thanks, and agreed, Unless height adjustment makes for a change in the damper's behavior, the adjust is strictly for height. BTW, expect the bilsties to last longer than the car. They were stock on Mercedes for decades, and they never needed replacement. I had a 98 E, and my mechanic was shocked that it had been delivered with Boges, dampers that wore out. Bilstein had become much more aggressive on replacement pricing, so I gave them a try. Big step change in handling/stability with just slightly firmer ride.
  3. The setup is a huge improvement. Absolutely firm and planted and much better damped. I waited a long time - 60K - to make changes, and they're worth it. I'd started with Whiteline swaybars plus the KYB GP2 replacements. Made good changes, to what I'd call a decent stock ride/handling. As delivered, this OBXT was just sloppy, with lots of rocking horse undulations and a bobbing tail. The swaybars plus BP5056 kit (plus Whiteline front LCA bushings that +.5 degree caster) is downright sharp and tight for DD but great and much more engaging. However, the rear is now a little stiff and nervous in the rear. So... QUESTIONs: ktmrider, is it you mentioned setting the rear snap-rings on the highest height position? That setting actually raises the rear on my car about 3/8". The setting is at one end of the 5 available. Snap-rings were on the middle when delivered. Reference point: before installation both front and rear wheel wells measured even at 29 3/8" (several measurements). Post-install, the front has dropped 1/2", so I'm tempted to put the snap-ring to full drop, which should level it with the front and change the roll moment considerably in the rear. Increasing compliance in the rear would also be welcome. The tail hopped on a whoopdie that was in a tight bend the other day - not a friendly feeling. Also, it seems that this adjustment simply for height, with no change in stiffness? Promise: After dialing in the tail, I'll post full results as a ref for others.
  4. Perfect! Thanks very much. FYI, the installation is tomorrow. I'll come back with results.
  5. Call me late to the game, but I've sourced the kit and the above parts. Thanks very much to all contributing to the work and the fine write-ups. QUESTIONs RE: The front assembly. Are the stock spring seats used, or does the spring mate directly with the top hat/upper mount, ... or what? (I've not been able to find any good drawings on the JDM setup) The spring seats in the Spec B drawing look very different than those for the '07 OB XTLtd. Still works, or not used? And, the Spec B top hat seems to have a spring seat built into it, but it's a solid connection, not one that utilizes the spring seat and therefore the bearing in the top hat. How does a solid connection like this work with the rotation of steering? Notes: The upper mounts/top hats are for '07 Legacy Spec B. My car is an '07, not an '05
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