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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Cosmetic Maintenance: Wash, Wax, Detailing, Repairs > Dirty Stock Exhaust Tips
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      08-23-2013, 09:39 AM   #1
syuan92
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Dirty Stock Exhaust Tips

I have an ActiveHybrid 3 and when I went to go try and clean the exhaust tips with a paper towel and some water, the black stuff wouldn't come off. Am I suppose to use something more rough than a paper towel? Is there some sort of special chemical that will clean the black stuff off? Will the exhaust tips still be shiny chrome if I use something more rough than a paper towel? Any help would be appreciated!
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      08-23-2013, 09:49 AM   #2
syuan92
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Also, I would prefer using common household items as opposed to going out and buying something specifically for just the exhaust tips. I just want to remove the black soot.
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      08-23-2013, 12:27 PM   #3
PTek Will
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Steel wool can be used in conjunction with a low grit sand paper. I chose to start with and SOS pad (the kitchen ones, basically soap and steel wool). Which got me to pictures 1 and 2. Which already is a great look from head height.
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I decided to take it a bit further and used 500 grit sand paper on a drill to get as much of the caked on exhaust dust off as possible.
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Next I used a 3" wool pad, that I was ready to toss, combined with M105.
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The last step was using the same pad with optimum metal polish (new formula).
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It is pretty blingin lol. If this is too much bling for you, I would say after the steel wool pad just go straight to a metal polish. But just wanted to show that polishing metal is very much like polishing paint, except you can start much more abrassive and work your way up. Using a drill attachment for the sand paper and pc for the compound and polish saved me tons of time and energy. Total work time was under 30 minutes.

Note: There are still very tiny specs of dust that just wont come off. I figure if i went to 500 grit and it still won't come off, then screw it! The finish is so blinding you cannot see it. Hope your project turns out well!
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      08-23-2013, 11:46 PM   #4
syuan92
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I gave up on mine. I'm considering just replacing the right tip. I bought my car used with 5k miles on it and I don't think the exhaust tip was ever cleaned so all the soot got baked on.
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      08-25-2013, 06:44 AM   #5
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The best metal cleaner and sealant on the market is:-

Blue b Gone and its readily available stateside.

http://www.smartwax-usa.com/ProductD...ductCode=40102
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      08-26-2013, 02:16 AM   #6
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This product works very well. I mean the exhaust pipe is looking pretty cleaned now, because those cleaning pads remove all the rust from the exhaust pipes. Thanks for sharing that product. I hope this is not too much expensive.
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      08-26-2013, 06:15 AM   #7
SamS
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I use my regular car washing soap/water combo + wash mitt, and it comes off every time. Not sure why all the polishing is required
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      08-26-2013, 08:28 AM   #8
syuan92
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Should I buy one new tip since there's basically stuff melted all over the right tip and even a thick metal brush can't remove it?
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      08-26-2013, 01:25 PM   #9
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Quote:
Originally Posted by SamS View Post
I use my regular car washing soap/water combo + wash mitt, and it comes off every time. Not sure why all the polishing is required
Ditto, comes off super easily. Try going to one of those self-wash car washes and blasting it with soapy water.
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