K&NEngine Air Filter: High Performance, Washable, Replacement Filter: Fits 2014-2019 BMW/Mini Cooper (Active Tourer, Gran Tourer, X1, X2, Cooper, Cooper Clubman, Cooper Countryman, One), 33-3025

Bought for BMW X1 25d - thats done around 12K miles. It gives a much smoother pull away, especially when engine is cold plus it sounds marginally better when idleing. Hard to really comment on performance yet, although I know engine is getting much improved air-flow to it which can only help. As for the MPG - Oh yes most certainly. Onboard computer is showing between 5-7% increase since installed. 100% recommend this product and will fit one to all vehicles I get in future.

Bought this for my Mini Cooper F56, it's made a little difference, it definitely has made acceleration a little smoother. The changes are small but I bought this more for longevity and the fact it can be cleaned. It's worth it since you're not paying much more than you already will for a half decent air filter.

Not sure about performance but its definitely smoother when flooring my car. I notice tiny bit of improvement in fuel economy. The engine sounds better too when idling and accelerating.

Since fitting this panel filter my Mini feels like it’s being driven in Sport mode, it pulls away with none of the lag it used to have, I’m well pleased with the purchase.

Good product. Arrived very quickly. Good value. Recommend this product