I'd recommend using a garret 14b (TDO5H), unlike the t-25 the 14b will be able to push more boost then 15psi, and for a blow off valve just goto a local junk yard and rip one off of a 89-94 Mistubishi Eclipse, Eagle Talon, or Plymoth Laser. Basically if you can find an 89-94 DSM you could get ahold ...