has anyone had any issues? I ordered some je pistons a few months ago, they said they didn't sell those anymore but had some mahle pistons that are just as good. they were $800. when I gave them to the machine shop they said that they are a 4032 alloy and wouldn't trust them at my boost and power levels. I called rpm and told them what he said. the guy at rpm said they are fine and they use them on race engines. so I told the builder to go ahead. well it seems I have a cracked ringland after 500 miles and the most kr I have seen so far was 2.0 for only a second. so I went on rpms site again and he has the pistons he sold me as (street use) on the site for $595 and has another set of heavy duty pistons with a different material for $800. ive tried emailing, and calling with no response on either. I have not been rude.....but should I be pissed about this or just bite my lip and go with a lesson learned and not use them again?