if its the same as every other CBE in wrx/sti fitment.. id get the longest exhaust hangers from NAPA (part # 35719).. u get just enough clearance.. ive had 2 cbe's (cobb and invidia N1 - both wrx/sti specific) and they both have good clearance without leaving your bumper all black..
heres my thread about it... exhaust hanger question
heres my thread about it... exhaust hanger question