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Discussion Starter · #1 ·
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%3A16414401%2Cp_item_shape%3ASquare&page=1#/ref=sr_nr_p_item_width_derived_1?rh=n%3A16310091%2Cn%3A!16310161%2Cn%3A3021479011%2Cn%3A383597011%2Cn%3A16414401%2Cp_item_shape%3ASquare%2Cp_item_width_derived%3A0.75+inches&bbn=16414401&ie=UTF8&qid=1326301314&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


  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.



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