Join Date: Dec 2005
Nominated 2 Times in 20 Posts
TOTW/F/M Award(s): 18
Thanked 1,103 Times in 942 Posts
Hello and welcome to the forum.
I'm not sure on the wattage rating of them but I suspect they are pretty low!.As for sizes,this link should help out and also has details of custom fit upgrades.....
I'd rather push my Alfa than drive a BMW....
Currently in Lagdti's garage:
2004 Saab 9-5 HOT Aero and a 2001 Audi A3 1.8 Turbo