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got mine going too - first drive yesterday. not a true 'back to back' as i've also cleaned injectors, added udp and added low-temp tstat, but now i can feel the car push me back in every gear over 4k rpm. also seems to rev higher more eagerly as 'blips' are quicker. very happy.
i am also feeding the new plenum from a bmc dynamic air intake wich works good but has a low spot between the filter and maf and i'm worried about water collecting, so i am about to install a cayman air box. the cayman air box has a 3" inside diameter and a huge filter area. also, looks like it will only require a 45 degree silicone elbow to mate the cayman airbox to the new plenum/throttle body. when done it should be 99% oem - 997 plenum, 996/997/cayman throttle body, reuse 986 maf housing, cayman air box, some short silicone pieces.
topless, if you read the other thread there is a guy on planet 9 who did the same thing to a cayman and got 8 hp proven on the dyno. cost is under $200 ($50 for the 997 plenum, $100 for a used throttle body, $50 for misc. silicone).
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