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Old 05-12-2010, 09:58 PM   #11
Eddy@APEXraceparts
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Join Date: Oct 2009
Location: Bay Area CA 94551
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My Ride: E30 M3, 540i/6
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Quote:
Originally Posted by rovert View Post
What are AST setups made out of? Are they stainless so they can handle harsh northern winter conditions? What kind of warranty are on the components as well?

All struts are produced using high grade steel as opposed to aluminum, stainless steel and other materials. Steel is by far the strongest, most durable material for this application. AST then coats each body in a process called "KTL" in Europe. This process is not common in North America but is often referred to as cataphoretic dip painting. Dipping the part into a bath all but guarantees complete, even coverage. This provides the best protection against corrosion. This process far exceeds OEM standards on corrosion and is extremely tough.

AST provides a 12 month warranty of the 4100 series kits. These are race oriented kits even though many of them are fully TUV certified. Because of their race nature, customers tend to run them in extreme applications that far exceed the stresses other kits put up with that offer longer warranty periods, not to mention uses that would normally be considered void.
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