Normally we don't get involved in these kind of discussions because there are so many points of view based on a combination of science, tribal knowledge and general folklore. When it comes to dust boots, there are strong opinions on both sides of the issue. There is no doubt that the early cast iron calipers did benefit from dust boots; however, the new aluminum calipers with stainless steel pistons and square cut piston rings function very well and are as resistant to contamination as their dust boot counter parts. We have been in business for 33 years and have sold thousands of calipers and have never had one returned because it was contaminated as a result of no dust boots. We do manufacture dust boot specific calipers because some of our customers demand it; however, there are many excellent reasons why we don't dust boot all of our calipers and if you call our Tech Department we will be glad to discuss them with you. We are a very large and successful company and we pride ourselves on manufacturing the best performing and most durable calipers on the market. You can be sure that if we believed there was any reason to dust boot all of our calipers, we would.
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