I live in California and it is time to smog my 2006 M5 I have supersprint headers and cats with a eisenmann exhaust systems sounds great and i have had it on for 5 years well it is time to smog i took it to a friend to do a pre smog to see where we were at and the smog machine wont even read my car I also have a power chip program does anyone have any ideas on how to get the smog done short of changing the car back to stock thanks for taking the to look at this
steve

my shop will do it for $300...itll be 20 miles away from you but he'll do it for sure.


PM me if you're interested

are you going to be selling your headers?