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Starting with its outer frame, BMC uses a special soft rubber material made in a process called "full molding", which not only provides a much tighter seal around the filter, but also eliminates any potential cracking or breaking of the filter. The filter element itself is made of a washable cotton material that provides nearly 40% greater airflow than paper, enclosed in an alloy mesh screen which helps the filter keep its shape and protects against larger debris and dirt. The increased flow of air through the filter provides a steady stream of clean air to the engine, resulting in much more consistent and efficient power.
FEATURES:
Fits all Porsche 718 Boxster/Cayman Base/S models (2017+)
Lifetime filters are washable and re-oilable
Original equipment for the Ferrari Formula 1 Team and Ferrari GT race team, as well as Porsche Motorsports, Mercedes Benz F1 and GT race teams, and the AUDI Motorsports Team
BMC Air Filters have a 98.5% filtering efficiency rating according to international standards for filtering (ISO 5011)
I just installed this today in my 718 cayman - the instructions to get to the engine bay are very similar to (all the same trim pieces need to come off in the same order, they just look marginally different):
Tools needed:
Small trim tool
T30 bit (4 screws on metal cross bar, 10 or 12 screws on engine cover)
T25 bit (4 screws on airbox)
Pliers (if you don't have a T30 allen key)
Screwdriver (for the 2 bits)
Recommended:
T30 allen key (2 bolts are in a position that makes them impossible to get with a screwdriver, you need a lowprofile ratchet that can hold your T30 bit, or an allen key)
Notes:
- The video does not show this as that is a 981.1, but on the 718 (981.2) there is metal in the way of 2 of the bolts for the engine cover - this is why you need the allen key.
- Trim pieces were relatively easy to take off - watch for the small plastic "cone" looking things - those go on the ends of the trim connectors.
- The metal cross bar is easy to take off, and much harder to put on - it bends a little so I would recommend not fully tightening all 4 bolts until you have them all threaded (might make it easier). This required me using a ratchet with a T30 bit just so I could tighten, I didn't have enough torque with a screwdriver.
Fab John, do you have any numbers on paper filter efficiency?
Hey! Fabspeed John has moved on to work with AutoQuest MS, you'll see him around here. But have no fear--Fabspeed Jason is here!
Here's an efficieny chart directly from BMC themselves! Running a high performance air filter is always a good choice for a cleaner engine and more efficient system.
Did you pick up a 718 recently? Check out the development thread I have going right here!
Hey Jason, I wasn't looking for flow improvement numbers I was interested in the particulate removal differences if any between paper and BMC. No worries if you don't have it handy, the opinions on the virtues of each will always be debatable.
Hey Jason, I wasn't looking for flow improvement numbers I was interested in the particulate removal differences if any between paper and BMC. No worries if you don't have it handy, the opinions on the virtues of each will always be debatable.
Ah, sorry for the confusion. OEM paper filters have a high resistance to incoming airflow. BMC Filters are made from oiled cotton, which has a much smaller allowance for particulate (down to 7 microns and up) and through the use of the oiled layers has a higher propensity for flow. The BMC Filter gives you both a higher flow and a higher resistance to particulate!
There's a lot of information on BMC's website as well if you're feeling like digging around. Cheers!