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Review on 🏎️ Enhance Your BMW's Performance with K&N 33-2997: High Performance, Premium, Washable Engine Air Filter (2012-2019 L3/L6 Models: M2, i8, 335i, 435i, M135, M235, 435i) by Frank Webster

Revainrating 4 out of 5

K&N = Why not? for air filter and accessories

Installed in my 2013 BMW 335i. I think it made little difference in terms of sound, fuel and performance, but no actual calculations were done to back it up. I've always liked K&Ns because of my other cars and figured you can't go wrong with them.

Pros
  • Very good price
Cons
  • I will write later