I took mine out Right away.
I took them out on my m5 as well.
And never had an issue with warranty on either car.
They are only there to stop odd smells coming back through.
Also it might be 7 hp but it feels alot more. The car sounds better
and it does have more response. Look at the charcoil filters
You can also say my car never came with them...
M6 interlogos blue on black
Kw V3's, gt exhaust fibre tips, 20 inch alloy technic B9's (20 lbs) pzeros, gloss black grills, scoops/filters, v fibre lip, software.
2007 e60 525XI winter/commuter beater
2006 e60 M5 Silverstone (gone)
2003 M3, Oem CSL Trunk, Diffuser and centre console, Carbon fibre trim. (gone)
2004 330I ZHP, alcatara interior. miss that car
Last edited by zigfread; 04-15-2010 at 06:24 AM.