Does anyone know anything about the kelleners sport ecu modification?

Its website claims hp gains are up to 14 hp for the 525i.Is it for the N52 engine?

And has anyone installed the eisenmann racing exhaust? How does it do?

 

i checked and it said that they refer to the ecu mod and other mods for the 525i with the M54 engine. here's the website i was looking at: http://www.kellenersusa.com/index.php?page...p;productid=891 . you could always go for an ecu remap from another vendor. some that out there are speed innovation, powerchip, eurobahn, superchips, etc.

as for the exhaust, im running with the eisenmann race on my 530i with the N52 engine. im quite satisfied with mine along with the removal of a resonator and an ecu remap that deepened the sound even more. many will say that with just the eisenmann muffler, it sounds pretty close to stock, maybe a little louder. i know member fantastic5 has the eisenmann race on his 530i as well and removed 3 resonators, but he's selling it now since he will be going with quads. good luck with the mods.

 

i also want to go quads, but was thinking all 3 resonator removals. I think that might be too loud, any suggestions as I dont want a true exhaust but just a dummy second. I have a 2007 530i. Thanks.

 

eisenmann's quad uses a dummy on the right side, and so does remus i believe. you also could just go with a custom exhaust.

 

Looks like the Eisenmann is using the EVC software to reprogram there ecu's, and that is good stuff.