E63 dyno run stock vs ECU flash
Stock 413.6 rwhp
After ECU tune 431.8 rwhp
After this I removed my rear cats, planning to get a new dyno run to see if I gain something there, the car feels more "agressive". But its hard to tell...
Stian
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Air box with KNN's only.
65k on spark plugs
OETuning..
A friend mine has the same setup as I do with a Kleemann tune, I he is no where close to me.His car is an 08 but all the same.



You had an air box upgrade and pulley kit anytime else?
Also what was your best RWHP numbers?
I am done with upgrades as the $ spent is not worth the HP gain.
If you want good trace number E55..
That is why I did not have mine tuned when I had the chance and just enjoy it as a daily driver under factory warranty.
The E55 is a much better platform to tune by far with the supercharger kinda like my cobra.
I would not want the E55 to break out of warranty either and have to pay for it with a 2nd mortgage.
If that Wiestec blower was out then i would still have my car .
All the money spent added up to the blower costs.







