CP-E Exhale Mazda Mazdaspeed HKS BOV Kit (multiple Options)

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Mazdaspeed HKS BOV

The MZR 2.3 DISI vehicles use a by-pass-valve (BPV) system to recirculate excess pressure from the turbo when the throttle closes. When upgrading from the factory valve – it’s important to maintain this system. Our kit includes everything that you need to get the added durability of a Mazdaspeed HKS BOV, but with the recirculating hardware needed to keep the factory system happy.


  • CNC Billet aluminum adapter flange
  • Tial QR and Q valve compatible
  • CNC turned aluminum recirc fitting (VTAapplication REQUIRES tuning)
  • cp-e™ HeliHose™ flexible silicone hose for perfect fitment
  • Stainless Liner clamps
  • Complete Bolt-on application and install
  • All hardware and instructions included
  • Made in the U.S.A.
  • Lifetime warranty

HKS has been one of the most recognized names in the forced induction industry, offering the legendary HKS SSQV valve, now in its 4th generation. The unique tunable sound sets this valve apart from others along with its automatic adjustment to boost pressures.

We at cp-e™ designed a kit for the Mazda MZR 2.3l DISI motor to specifically utilize the HKS SSQV Valve. The kit comes with everything needed for a completely bolt-on, carefree and easy installation.


This kit will not fit with the stock air box.

Self Adjusting Valve

The HKS SSQ BOV is self adjusting and does not require calculating the proper spring for vacuum like a Tial valve. Just install and you’re good to go without any modification.


The full kit option includes our specially designed HeliHose™ – a flexible silicone hose that routes the vented air back into the inlet pipe, following the OEM design. The supplied Stainless Liner clamps ensure a tight fit without damaging the silicone.

CNC Machined Flange

We designed a low profile CNC machined adapter flange to bolt on to the factory location and interface with the HKS SSQV valve.

Note: We cannot guarantee fitment with the use of any product that moves the location of the intercooler outlet or throttle body. This includes but is not limited to throttle body spacers, port injection spacers, and aftermarket intake manifolds.

Not California emissions compliant | No implied CARB certification | Off-road use only

CALIFORNIA WARNING:Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Availability:  In stock parts ship within 2 business days, out of stock parts will take approximately 2 weeks. 

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