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ive done some searching and found that there are considerable HP gains for the s4 guys to swap over all intake mannifolds and throttle body. what i havent found is if i do the same thing with s5 intake system my afm is already not up to par with the s4, is it possible to use the s5 ecu and intake components on my s3? im asking cuz i might be getting a s5 for close to nothing and want to see how much i can get out of a stock port s3 motor. i have an 85 SE