I had mine changed, it seemed to make the car run a bit smoother. They just get soft after time, did it set off any codes?

__________________

2005 545i Sports/Prem Package
(Retired) 2003 X5 4.4i-sport package, cold weather package, OEM trailer hitch, 20' replica metallic pewter 215's, X-pipe, Navi w/ custom splash (MUFC logo), cross drilled brembo rotors with Akebono ceremic pads.