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herrbrahms, I just received my stealth hitch this week for installing on my 2015 535i m-sport. I had an invisihitch (which seems identical in design except for the receiver box not being stainless steel) on my 2011 335d which worked great although I couldn't transfer it to the new car. I plan a DIY but can you confirm sandwiching the hitch beam between the body and the OEM bumper beam is correct (body frame bolts long enough to handle the sandwich)? My instructions say to discard the OEM bumper beam. The recommended installer that did my 335d invisihitch did not use the sandwich method. As a side note, the stealthhitch instructions mention trimming required for the gravel guard and bumper facia but doesn't provide a template/specifics.
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