FWIW my stock 930 rear bumper weighed 45lbs including the bumper shocks and the tin heat shield. I replaced it with a "tasteful" RSR style glass bumper from Rennspeed which weighed 6 lbs. Might have added two lbs of heat shield mat and silicone etc. The glass bumper is tasteful, but my front bumper still has the rubber bellows which now look out of place.
Jim
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