even though they are cheap it runs easy low 13s at 200kmh with no traction , surely no one would pay that much for a dfi from Holden mace sell Delphi Module and coils plus plugs and leads for $470 and that's retail but they come with autolite plugs I'd ditch them for ngk though ,isn't Delphi Gm owned and one of their higher quality electronics manufacturers, I thought the oem module is Delphi i could be wrong, if I see gorst I'll give em a try I've fitted a heap of different brands over the years but for what it's worth I always recommend Delphi over the others and I've never had a warranty on one I pretty much believe that any Chinese knock of is as good if not better than any overpriced aftermarket brand our retailers are flogging off as an alternative, you probably gathered I'm not a fan of nason but I've got a list of other names that shouldn't have passed ADR and anyone bought any 3/8" efi hose from repco lately it's great stuff I mean its rubbery it's black just don't use it for any petrol products as it melts in contact with fuel! thanks again repco for making it easy to run a workshop and selling us eBay quality at premium prices