Quote:
Originally Posted by TiAgX5
Not surprised here Jay.
I've seen HD/HP Bilsteins with around 200k miles put on a shock dyno and tested, results have shown around 98% performance vs new specs.
The HP Bilsteins were installed OE on all sport pkg and 4.6is/4.8is E53s.
When these HP shocks are purchased aftermarket, they carry a lifetime warranty.
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The front struts on my 4.6is were/are BMW delphi sourced front struts. The rear have the black bilsteins. I was surprised at the Delphi front struts but being the X is built in South Carolina they typically build the product from a supplier park which would include the likes of Delphi.