Unfortunately the OPF pressure sensor pipes are attached to the DPs. So if you fit aftermarket DP's then you lose those connections and will have 100% OPF fault. (Super sprint DPs have sensor pipes but not seen any others, they cost a fortune though).
You need to remap for decat DP's anyway so just map for OPF removal too. If you fit hiflow CAT DP's without OPF pressure pipes then you won't have CAT fault but you will have OPF fault even if you have OPF still fitted.
I've got no faults with OPF replaced with hiflow secondary CATS as yet. But if I fit decat DPs in future I will have to remap anyway.
Last edited by doughboy; 05-02-2019 at 03:24 AM..
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