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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 01-11-2012, 12:22 PM   #1
johntrhodes81
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Join Date: Nov 2010
Location: Northern Virginia
Posts: 142
My Ride: 2004 325i Wagon
DIY BMW Performance Style Extra Intake

I just built a BMW Performance Style Air Intake. The over the core support extra air inlet. I added it do a Dinan airbox but it can also be added to the original oem airbox.

If you add the brake duct air intake and a cone filter as described in other DIY's you can basically build yourself a BMW Performance style intake for not much money.

This DIY is not to expensive maybe $30.
You will need:
square 3/4" PVC tubing from amazon.com: http://www.amazon.com/s?ie=UTF8&rh=n...&rnid=42542011

You will probably need 2 each 24" sections.

paint of your choice
bondo or filler of your choice
JB Weld or epoxy of your choice
A Dremel tool is very useful
RTV Silicone

Steps:
  1. Make a template of where the intake will go.
  2. Sand the gloss off the PVC Pipe
  3. Cut to length.
  4. JB Weld several sections of pipe together to make air intake.
  5. Use bondo to smooth up indentions and make one flat piece.
  6. cut finished shape of air opening.
  7. paint
  8. Remove airbox lid
  9. cut hole in airbox lid.
  10. JB Weld intake into airbox lid while in the car in final position
  11. JB Weld under side.
  12. touch up airbox intake combo
  13. reinstall
  14. use some RTV silicone to prevent vibration between air intake and core support

You will want to make sure there is no interference with the hood as I had to Dremel off some after installation.


John
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Old 01-11-2012, 12:23 PM   #2
E46Moonlight
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Nice!
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Old 01-11-2012, 06:32 PM   #3
Solidjake
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!!!!!! NICE MAN!!
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Old 01-11-2012, 08:11 PM   #4
darksideracer69
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Thats pretty cool
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Old 10-20-2012, 11:16 PM   #5
serdar255
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Awesome!
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Old 02-12-2014, 11:21 PM   #6
lui328i
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Location: fontana ca
Posts: 105
My Ride: 99 Bmw 328i
Cool

Quote:
Originally Posted by johntrhodes81 View Post
I just built a BMW Performance Style Air Intake. The over the core support extra air inlet. I added it do a Dinan airbox but it can also be added to the original oem airbox.

If you add the brake duct air intake and a cone filter as described in other DIY's you can basically build yourself a BMW Performance style intake for not much money.

This DIY is not to expensive maybe $30.
You will need:
square 3/4" PVC tubing from amazon.com: http://www.amazon.com/s?ie=UTF8&rh=n...&rnid=42542011

You will probably need 2 each 24" sections.

paint of your choice
bondo or filler of your choice
JB Weld or epoxy of your choice
A Dremel tool is very useful
RTV Silicone

Steps:
  1. Make a template of where the intake will go.
  2. Sand the gloss off the PVC Pipe
  3. Cut to length.
  4. JB Weld several sections of pipe together to make air intake.
  5. Use bondo to smooth up indentions and make one flat piece.
  6. cut finished shape of air opening.
  7. paint
  8. Remove airbox lid
  9. cut hole in airbox lid.
  10. JB Weld intake into airbox lid while in the car in final position
  11. JB Weld under side.
  12. touch up airbox intake combo
  13. reinstall
  14. use some RTV silicone to prevent vibration between air intake and core support

You will want to make sure there is no interference with the hood as I had to Dremel off some after installation.


John
dude you think just like me I've been thinking of doing the same thing I made custom aluminum intake box and was going to eliminate snorkel and widening it the way u did but we're the snorkel is at real cool check out my pic in my garage custom intake custom strut bar
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Old 02-12-2014, 11:23 PM   #7
lui328i
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Intake
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Old 02-12-2014, 11:25 PM   #8
lui328i
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Quote:
Originally Posted by lui328i View Post
Intake
Strut bar
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Old 02-12-2014, 11:27 PM   #9
lui328i
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Stut again and dip stick don't look to bad
Matches all bmw emblems and my new brakes
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Old 02-12-2014, 11:29 PM   #10
lui328i
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Brakes
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Old 02-12-2014, 11:31 PM   #11
lui328i
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Brake job
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Old 02-12-2014, 11:32 PM   #12
lui328i
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And also stainless steel brake line coated with blue liner hard to see in the last pick
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Old 02-12-2014, 11:36 PM   #13
lui328i
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Definite difference in braking old brake couldn't Handel new wheels xxr's 18 with 2.75 lip
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Old 02-14-2014, 07:07 PM   #14
wildcat293
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i usually find intake mods useless and silly but this looks fun. will have to keep an eye our for someone selling their old after they "upgraded" to a cai.
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