No, I don't think pulleys & a custom 2.5" magnaflow catback will make 150WHP.
http://www.unorthodoxracing.com/Dyno_Protege.jpg
All I see is a 3HP gain from the pulleys.
150WHP would require more than your mods. Even with a header, cams, and cam gears, I would only barely break 130whp.
http://www.unorthodoxracing.com/Dyno_Protege.jpg
All I see is a 3HP gain from the pulleys.
150WHP would require more than your mods. Even with a header, cams, and cam gears, I would only barely break 130whp.