Quote:
Originally Posted by xraym5
I believe the "2 sport catalysts" are actually high flow primary cats welded to the OEM headers, which when combined with software and "2 pipes" yields 544 crank horsepower: noelle motors - Specialist for BMW engine tuning - 5.0l engine (basis BMW M5 V10)
I suspect the advantage of the high flow primary cats is being emissions compliant, not having a check engine light, and not needing software to disable it.
|
Thats exactly the setup wich i got from Noelle. 2 pipes welded to the stock headers to delete the first cats, second cats replaced with sport cats and ECU remap..
I am running this witch stock section 2 and 3.... All i can say is... "M" azing


Stock M5s are rally "slow" against mine... Tried it alot of times against friends..
The car pulls amazing, especially in high rev.. I really got another kick after 6000 rpm. Before i got Eisenmann Race Cans and after i changed back to stock i felt a real gain in Power.. Even my Mechanic who knows the car from A-Z and who fixed the upgrade said that its unbelievable how much power has been lost through the Eisenmann Race Cans... And by the way.. The Eisenamann Race cans were just redicilously loud with this setup.. Absolutely NOT daily driveable.. So no i am thinking about Tubi or something.. BUT i defianely DONT want to exchange sound against power again...
The sound now with stock section 2 and 3 is different to stock.. its much louder and if you floor the pedal you really hear the sound, produced from the headers and cats.. actually under the car
Peopel who hear the car are always saying... This soesent souds like Exhaust sound, this sounds like power...

LOOOOL
Now i am still selling the Eisenmann Race cans.. If anybody interested.. PM PLEASE!!!
I really can recommend this setup...
That was just my "50 cent"