K&N
K&N BM-1121 High-Flow Washable & Reusable Motorcycle Air Filter for BMW R nineT 1170cc (2020-2021) - Drop-In OEM Replacement Performance Intake Filter
K&N BM-1121 High-Flow Washable & Reusable Motorcycle Air Filter for BMW R nineT 1170cc (2020-2021) - Drop-In OEM Replacement Performance Intake Filter
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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K&N BM-1121 Reusable Performance Air Cleaner for BMW R nineT 1170 cc 2020 to 2021
Unlock smoother breathing and crisp response on your BMW R nineT with the K&N BM-1121. This serviceable cotton gauze panel insert is a direct-size replacement for the standard element, designed to elevate airflow while maintaining excellent filtration. It fits straight into the factory airbox, can be washed and re-used, and is a smart upgrade for riders who want a clean, long-lasting intake solution that sounds and feels more responsive on the road.
Key benefits
- Direct swap for the stock element in the original airbox, no cutting or drilling
- Washable and reusable cotton gauze media for long service life and strong filtration
- Free-flowing design that helps throttle pick-up and a richer induction note
- Durable construction engineered for repeated cleaning and re-use
- Cost-effective and eco-conscious alternative to disposable paper filters
- Simple DIY fit for most home mechanics
We run the BM-1121 on our own builds and our customers consistently feed back improved intake feel and confidence-inspiring filtration. It is a straightforward intake upgrade that pays for itself over time.
Vehicle fitment
Fits BMW R nineT 1170 cc models for 2020 and 2021. Also referred to as BMW R9T or R nine T. If you are unsure about compatibility, get in touch and we will confirm before you buy.
Compatibility check before dispatch
For peace of mind, we verify fitment prior to shipping. Add your UK registration or the last 7 characters of your VIN at checkout and we will double-check the details.
Professional fitting and support
Prefer expert installation. MJ Modifications offers fitting in Warwickshire. Request a quote at info@mjmodifications.co.uk.
Part number
K&N BM-1121
What riders search for
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Questions about availability or fitment. Email info@mjmodifications.co.uk and our team will be happy to help.
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