With Giac's 3 liter chip they are claiming 6-10 horsepower but then they go on to say that for optimum performance you need an intake and exhaust. Does this mean that for the 6-10 horsepower you need the intake and exhaust?

check on www.audizine.com a few members there have it, i think they said it wasnt worth the $500 for the few HP it gave

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APR 1+ Stasis StreetSports/Center Diff Neuspeed Exhaust/TP Podi w/ VEI Digital Gauge JHM Short Shifter Southbend FE SS Racetec FMIC Apikol Snub 6000k HIDs

2004 AUDI A4 1.8T UltraSport