i just recently got tuned at turbotrix and very happy with my results. my 9 has only intake,mbc,and buschur 3in tbe with hf. my final results were 340whp/340wtq which was incredible power wit a high flow. mark told me with a test pipe i gain anywhere from 10-15whp. but the thing is that wasnt my original numbers i came into turbotrix with a turbosmart mbc and left with a hallman. aparently with the turbosmart i was making like 328-334whp and 351-355wtq.(cant remember exact) mark said that my boost was spiking higher and droping lower. so he wanted to try a hallman and the hallman holds 26 with i tiny taper at high rpms almost solid. so i just bought the hallman and said what the heck. my question to you guys is what controller would u run on your evo?