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Registered
Join Date: Apr 2002
Location: Houston (Clearlake), TX
Posts: 11,317
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I don't know if you'll notice 5 pounds, but I put some 40 lb wheel & tires on our 328i in place of the 56 and 60 lb wheel & tires and it felt like another 20 hp especially at lower speeds.
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2014 Cayman S (track rat w/GT4 suspension)
1979 930 (475 rwhp at 0.95 bar)
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