i used to be a carpet clear. take it to a well known carpet cleaner such as stanley steemer or someone and drop it off to them. they have solvents and special cleaning items they can use to remove a lot of stuff you wouldnt think will come out. i think you would be surprised as long as they put in a little effort on it.
4" MBRP straight back, BDS lift, 20x10 xd strikes on 35 toyo mt's. next step is head studs!!!
There is some tips to clean the carpet vacuum, hot water cleaning, dry wash etc., According to my view, take it to a best carpet cleaning service, I found one of the best seattle carpet cleaning service with the latest carpet cleaning equipment for reasonable price of well done job.