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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Midpipe bracket question



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      11-09-2012, 10:03 AM   #1
bigbro6785
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Midpipe bracket question

I installed downpipes this past weekend. Apparently I didn't tighten the midpipe bracket bolt tight enough because I lost it on on the road today. I was able to go back and find the bracket but not the bolt. So my questions:
1. Is the mid pipe bracket that important? Would I be ok without it or does the exhaust need that extra support?
2. Anyone know what the size of the bolt is?

Thanks
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      11-09-2012, 10:13 AM   #2
enrita
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http://www.realoem.com/bmw/showparts...g=10&lang=enUS
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      11-09-2012, 10:20 AM   #3
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Just a note: Don't over-tighten that bolt in reaction to your lost bolt, if it's the #12 on Enrita's RealOEM image: those will break in the top bracket if you kill them with air tools. Ask me how I know...
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      11-09-2012, 11:05 AM   #4
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Quote:
Originally Posted by enrita View Post
Awesome thanks man
Quote:
Originally Posted by eric@helix View Post
Just a note: Don't over-tighten that bolt in reaction to your lost bolt, if it's the #12 on Enrita's RealOEM image: those will break in the top bracket if you kill them with air tools. Ask me how I know...
Ya #12 is what I need. But I'm wondering if my top bracket broke as you mentioned. I left the under tray off after my install so I could get back in this weekend and re tighten everything. I went over a huge speed bump and heard the exhaust hit...shortly after is when the bracket fell off. Guess ill have to get under there and check it out.
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