i took two cars i about 1 month a go one of them had no p/s no a/c 2.5 full exhaust and a jdm stock semi header it give me 155whp and the other one was the best it has a peace setter it has 2.5 full exh and no p/s a/c and Brian cower stg2 cams with 2.5adv on intke cam and 2.5 retard on exhstcams and that has 170whp both on dyno jets so you would be like on 160 to 165 or more