a lot of that depends on where they are located too (elevation, temperature, humidity, etc). different dyno put out different #'s as well...we've dyno'd cars at the shop one evening and the next day taken the car to another shop's dyno-day and it put out higher #'s at the dyno-day.
you can probably estimate 7-10whp/lb of boost on an average setup over stock. sometimes you see 12-14whp/lb depending on the turbo and kit.




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