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Old 09-02-2020, 04:23 AM   #54
Van914
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Join Date: Oct 2012
Location: Cincinnati, Ohio
Posts: 373
Garage
Has anyone seen this?

Hey guys, I've found some good low cost mods for a 987 Boxster that's really worthwhile if you're sensitive to chassis flex. This doesn't really improve performance, even though a lot of aftermarket companies that sell bracing might claim so. However, for someone like myself who hates the little bit of "reverb" vibration emanating through the car's structure over rough roads or even normal bumps, this is great couple of mods. It does increase steering precision at very high g loads as well, but it's a minor difference.

So onto the mods. For the 987 chassis, Porsche decided not to include the diagonal braces in the front compartment that the 997s have.



The mounting holes for these braces are already in place in the 987, you only need to buy the braces and the 6 bolts for this to bolt right on.

Parts:
99650423301 (DRIVER SIDE)
99650423401 (PASSENGER SIDE)
90037810001 Hexagon-Head Bolt M10 X 45 2
90007501003 Hexagon-Head Bolt M6 X 12 4

If you're on a budget, go ahead and buy the braces used on Ebay or something, otherwise they're still only $130 USD or so. The bolts can be bought anywhere or ordered through a dealer as well. These braces will slightly improve steering precision when the suspension is loaded up in corners. The difference isn't huge, but it does work. Why Porsche left them off the 987, I have no idea.
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