running rich

Does anybody know if its okay to run the MAF on the cold side of my IC piping, boost pressure isnt going to fuck it up or anything? Everything i left off throttle i get a extremely rich condition and i need to pass emissions within the next 2 weeks, also wanna get rid of the huge black marks im getting across my back bumper lol. I was going to run my SSQV recirculating but i like the sound and dont wanna get rid of it. Any thoughts or ideas?

thanks