Cleaire Horizon DPF system does not work CA!!. Purchased a DPF system from Ironman parts which is one of their many distributors. Per ordinance of the California Air Resources Board trucks in california have to have a DPF system. Just a month after installing filter began clogging up. Having to be regenerated every other night. Keep in mind prior to filter being installed my truck had been serviced and smoged checked as directed. Never did I went without fixing my trucks. Went back to the installer with the problem and the only response I got was truck malfunction. Cleaire horizon did not warranty my filter, blaiming the malfunction on my truck. Do not purchase this filter and do not use Ironman to install it.

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www.skepticfiles.org/scam/cleaire-horizon/