Pipercross Panel Air Filter for BMW 1 Series F20 F21 125i N20B20A – the proven, high flow, washable and reusable performance air filter upgrade for your BMW 125i. Direct drop-in replacement for the OEM paper filter in the standard airbox, engineered to increase airflow, improve throttle response and support gains in power and torque while maintaining excellent filtration and engine protection.
- Directly replaces the factory air filter in the OEM airbox – simple drop-in fit
- Up to 30 percent more airflow over a standard paper air filter
- Bench tested for improved fuel economy, power and torque outputs
- Longer lifespan before cleaning compared to cotton filters
- Easy to clean – no dirt trapped in V shaped grooves like paper or cotton
- Lifetime warranty for road use replacement and performance filters
- Made in the UK at Pipercross Northamptonshire HQ
Why choose a Pipercross foam filter for your BMW 125i
Pipercross uses advanced multi layered foam technology rather than cotton or paper. Foam has a higher filtration capacity, so it flows stronger for longer and resists restriction as it loads with dust. Where thin cotton or paper media is stretched over V shaped wire frames and begins to choke, Pipercross triple layer foam keeps the airflow up and the performance consistent.
The triple layer construction provides exceptional engine protection in all conditions:
- Outer coarse foam captures larger particles
- Middle medium foam traps the bulk of contaminants
- Inner fine foam catches the finest particles
The result is a high flow, low maintenance, serviceable panel filter that supports better drivability, sharper throttle response and a subtle induction sound, without the need for any remap. It is the ideal OEM airbox upgrade and an effective alternative to induction kits for daily driven and fast road BMWs.
Fitment and compatibility
Designed for:
- BMW 1 Series F20 F21 125i
- Engine code: N20B20A
- Direct fit in the standard airbox
Built in Britain
Every Pipercross air filter is hand made in the UK at the Northamptonshire facility to the highest standards. British manufacturing, quality materials and rigorous testing deliver reliable performance and long service life.
Nforcd recommendation
We run Pipercross filters on our own cars and our customers love the upgrade for its noticeable responsiveness and the convenience of a lifetime, washable filter. It is a cost effective, performance focused choice for the BMW 125i N20.
Fitting service
Simple home install for most owners, or we can supply and fit. For professional fitting at Nforcd in Warwickshire, request a quote: Sales@nforcd.com.
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