The right way to have them "shaved" is to take them to a good body shop and have them fill them with a piece of bumper material, then use plastic filler to blend them in to smooth. I'd guess it'd cost about 1000 to 1500 for each bumper to do well.
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Scott in Cincy | 2011 335i X-drive |Sapphire Black over Oyster Nevada | VMR V810 19" | Eibach springs | Koni Yellow | Cobb Stage 2a | Dyno Tuned by TiC
Pure Stage 1 and inlet pipe sitting in a box in garage!
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