I will get the AFR data from those previous dynos today with some luck and will post them up.
In my opinion our stock ecu is doing a good job of coping with the extra fuelling that is most likely required now.
I read my Long Term Fuel Trims almost every day, yes very sad, but they look spot on, nicely balanced and not seen higher than 1.8% on either bank.
With healthy Pre Cat o2 sensors in place, all should be well.
Mapping is of course a natural option after fitting higher flow headers like these, and there will be a mapping service available,with an Alpha N option too . I have been spell bound by the performance gains I have realised so far with Van Manen Headers, and look forward to seeing further gains with remapping.
Prices for the Race Cats and rest of the system have yet to be determined. I am sure they will be happy to discuss your needs in detail though.
what are their contact details? sorry this is a really long thread, i'm sure it's in here somewhere!
i'll probably do manifold and cats first.
just ouf of interest, what monitoring kit do you use in your car?
i will be going alphaN but with a supercharger kit...
And I can tell you, they sound great. And the car pulls hard. These are quality items.
It was great to meet up with you last night !! So cool to meet people, from another part of the world, through this marvellous forum and share a mutual passion for our M5, not to mention a couple of drinks and Tapas too
Come back soon, you have an open invite
PS : I wasn't giving it the full beans with you in the car, out of respect ..... BUT I did on the way back though, much to the dismay of a 2007 911 Carerra S....ha ha ha ha ha