• Welcome to the BMW R18 Forums. Member registration disables ads and allows you to post and share. Register Here.

Performance plates

  • <i class="fa--xf fal fa-check "><svg xmlns="http://www.w3.org/2000/svg" role="img" aria-hidden="true" ><use href="/data/local/icons/light.svg?v=1789222567#check"></use></svg></i> Discussion starter Discussion starter Petrus
  • Start date Start date
New R18B owner here. I'm very interested in how the side air intake from Petrus works out for those that have purchased it. More air should mean more power!
Just remove your bikes plates and go for a ride..... plate removal is one minute per side.... this will tell you most of what you need to know. Off course the plates won't flow as much as the complete open hole allows each side.... as they are "honey comb" thus form a partial restriction.
 
Just remove your bikes plates and go for a ride..... plate removal is one minute per side.... this will tell you most of what you need to know. Off course the plates won't flow as much as the complete open hole allows each side.... as they are "honey comb" thus form a partial restriction.

To notice what you need to know the harmonica rubbers need be removed too. Those are thé bottle neck. And also the filter lid, OEM filter restrict way more than the honey combs.
But yes, as was observed several times before, remove filter lid/ rubbers, side plates and you will get pretty much the effect.: Being more air = more power because the R18 cpu will autotune the mixture.
 
Last edited:
To notice what you need to know the harmonica rubbers need be removed too. Those are thé bottle neck. And also the filter lid, OEM filter restrict way more than the honey combs.
But yes, as was observed several times before, remove filter lid/ rubbers, side plates and you will get pretty much the effect.: Being more air = more power because the R18 cpu will autotune the mixture.
I was feeling nostalgic today.... looked back in the old threads and noted I did my dna stg2 filter, lid and snorkle removal work back in Aug 2023.....
 
Back
Top