Quote:
Originally Posted by jmh
So where's the secondary cat on the F10 M5 ?
There have been reports of folks running Eisenman exhaust (early in the lifecycle) where
the vacuum lines have been wrong or not attached at all, causing the car to run much worse than before.
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I run an Eisenmann Race- zero tq loss--- dyno'd my car at EAS after the exhaust was installed. I dont think I gained any power but I didnt lose any either based on these numbers. The car runs very strong based on my tangible experience with 500+ hp cars.
I did not get the exhaust with valve controls so my installer did plug the lines because if you dont you will not have any boost and essentially will run a 300 hp car. I dont care about the valves as I always want my car in the loudest format.
FYI although the dyno graph says I have a center pipe- I do not... just axle back. The below numbers are SAE corrected too... std correction yielded 550hp.