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Balance Shaft Delete Kit for 2006-2013 DISI MZR

Price: $109.99
Price in points: What are Points?110 points
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The CorkSport Balance Shaft Delete Kit includes everything you need to get that last bit of excitement out of your Mazdaspeed.

Removing the rotating mass of the OE balance shaft frees up a few extra horsepower but more importantly, makes your engine rev faster. You also gain extra oil capacity and oil starvation prevention to keep your engine healthy longer. If you can handle some increased vibration from your engine and want quicker RPM gain, look no further than the CorkSport BSD Kit.

The CorkSport Advantage

Speed3 balance shaft delete kit aka BSD

Performance Driven

The CorkSport BSD Kit removes about 18 lbs of weight from your engine. The simple weight reduction provides a small performance gain, but the much bigger gain comes from a decrease in the rotating mass of the engine. By removing the weight that your engine has to spin, it becomes easier for it to rev. This means a faster revving engine, easier rev matching, and even a few bonus horsepower.

Mazdaspeed 3 windage tray to remove oil froth and slosh

Engine Protection

The oil pan baffle is supplied with this kit to provide some much-needed oil control to your Mazdaspeed. When driving aggressively, oil tends to move around in the pan which can starve the engine of oil in certain circumstances. Not enough oil getting to vital engine components is never a good thing. The CorkSport oil pan baffle prevents excessive oil movement and oil starvation in any driving situation. In addition, it acts as a windage tray to help prevent aerated oil and the poor lubrication that comes with it.

Mazdaspeed 6 BSD removal kit with everything you need for installation

Design Focused

The oil block off plug was designed specifically for optimum sealing in mind. It fits precisely in the OE balance shaft’s oil supply passage and seals using a fluoroelastomer O-ring. This O-ring is safe with engine oil and can withstand temperatures of 400°F. The O-ring alone keeps the plug in place; however, it is locked down with a securing plate and bolt in one of the OE balance shaft’s mounting holes. It’s been proven to hold oil pressure on a Mazdaspeed3 making over 450WHP.

bolt in Speed 3 oil pan tray

Materials and Manufacturing

All parts of the kit are made from laser cut and/or precision machined stainless steel. This allows for great strength and parts that will last the lifetime of your speed. Stainless has the added bonus of being more rigid than the aluminum used by other options on the market. This means we were able to use a 2.5mm thick O-ring for better oil sealing while using a low profile design for a cleaner look. The oil pan baffle benefits from stainless rivets and 0.060” thick sheet that is rigid enough prevent any vibration or rattles.

NOTE: The CorkSport BSD kit comes PRE-ASSEMBLED.

Additional Features

    • Vehicle Fitment:2007-2013 Mazdaspeed 3, 2006-2007 Mazdaspeed 6, 2007-2012 Mazda CX-7
    • Designed in America: Designed in Vancouver, Washington, in the Pacific Northwest.
    • CorkSport Service & Support: 2-year limited warranty, full-color installation instructions, all necessary components, and knowledgeable telephone support at (360) 260-2675.


  • NVH (noise, vibration, & harshness) will be increased by the installation of this BSD Kit.

How To Install Your CorkSport Balance Shaft Delete Kit

It will take you five hours to install the CorkSport Balance Shaft Delete with our easy-to-use instructions.

5 Hour Install Time

5 Hour Install Time

Difficulty: 4/5

4/5 Difficulty

2-Year Warranty

2-Year Warranty



Definitely worth it. Takes a lot of weight off the block and helps improve RPM gains.
Worth it
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It days 2006 but then in blue says 2007 will this work on a 2006

Asked by Kody clegg | 07/04/2023, 05:05 PM | 1 answer(s)

Will this balance shaft kit also fit other Mazda MZR applications? 2.3L Normally Aspirated as found in the 2003-2013 Mazda6, the 2.0L Normally Aspirated as found in the NC Miata, or the 2.5L as commonly swapped into these applications?

Asked by Theo Abramovich | 03/30/2023, 12:46 AM | 1 answer(s)

Are there disadvantages on removing the balance shaft on a stock block besides NVH? Just wanted to know why you don’t recommend it for stock blocks.

Asked by Kenneth W | 03/15/2023, 05:58 PM | 1 answer(s)

Would this work with a stock setup on a 2010 speed3?

Asked by Colin Petkau | 03/01/2021, 10:56 AM | 1 answer(s)
Mazda performance parts financing is available with CorkSport

Looking to finance your parts purchase and want to get 6 months NO interest on any purchase over $199? Click on the image above for more details.