What about going with the Bilstein HD's? They are cheaper and everybody uses them. You'll be very pleased.

Don't quote me, but I doubt there is any difference between them since I believe they are the same company.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k