Turbosmart MPS/Mazdaspeed Dual Port fitting tutorial

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Uploaded by on Feb 24, 2008

A quick DIY guide to fitting the MPS Dual Port BOV to a Mazdaspeed (MPS) 3. Same procedure will apply to the 6 and CX7.

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Uploader Comments (Turbosmart66)

  • The Dual Port can be used as a recirc or atmo or a hybrid of both. Either will work fine on a 6 MPS. Have a look at our Dual Port overview video it show how you can change the outlets to convert it from recirc to atmo and back.

  • Turning the cap changes the spring tension NOT the noise the valve makes. It is used to tune the valve to your engine.

  • So if installing on a bone stock CX7 (with no tune) itd be better off to get a BPV rather than a BOV to prevent fluttering of the engine?

  • @ferrarimk13 on a car with no tune and no plans for increasing boost a BPV (Plumb Back) version is the best option.

Top Comments

  • EXCELLENT! Please post more Mazdaspeed 3/6 tuning. You rule!!!

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All Comments (55)

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  • I thought the 6 MPS was designed to run recirc and not atmospheric?

  • @atruthinalie probably not but if they give you it why not use the new one

  • is the replacement gasket ESSENTIAL to use?

  • what does turning it either the soft or hard direction do?

    which one gives more noise and what the purpose?

  • I got my bov figured out. The bottom part (where the 2 bolts are) was adjustable. The new kompact plumb back bov sounds great!

  • @Turbosmart66 Thanks, but I resolved the issue long time ago. I don't even have that bov anymore.

  • @Turbosmart66 It is a first gen MS3. The problem is the large tube isn't at a 90 degree angle like the stock one. Not sure if it is adjustable from the inside. do u know?

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