Generally speaking....maybe every 10-15k miles. Depends some on how dry/dusty of a climate you're driving around in. Luckily this translates to every 3 years or so for me.
Thanks! Engine cover from NV Specialties. Logo is burnt titanium from Titanium Works. Freaking love the intake. Feels peppier....but mostly enjoying the amplified whoosh turbo spooly noises ?. The one downside I'm realizing is it ALL needs to come back out when time comes to change the...