K&N Replacement Air Filter for KTM RC8 1190 (2008-2011) – KT-1108

Engineered from premium multi-layer cotton gauze and precision-formed aluminium mesh, the K&N KT-1108 replacement air filter is built to outlast the life of your KTM RC8 1190. It drops directly into the factory airbox with zero system modifications, unlocking the full breathing potential of the airbox to deliver genuine gains in horsepower and acceleration — all while meeting every noise and emissions regulation in force.

Key Features

• Multi-layer oiled cotton gauze media delivers a higher airflow rate than the OEM paper element, translating directly into improved throttle response and peak power on the KTM RC8 1190.
• Washable and reusable design eliminates repeat filter purchases — a single KT-1108 is engineered to last the full service life of the engine.
• Extended service intervals of up to 80,000 km between cleans, depending on riding conditions, dramatically reduce routine maintenance time and cost.
• Fully compatible with the RC8 1190's standard fuel injection and onboard electronics — no remapping or hardware changes required.
• Precision-fit OEM replacement profile means installation is straightforward: remove the stock filter, fit the K&N, and ride.
• Reusable construction reduces landfill waste compared with disposable paper filters, making it the more sustainable long-term choice.

Build Quality and Materials

Where most OEM filters rely on a single-stage paper element, the K&N KT-1108 is constructed from alternating layers of cotton gauze, each precision-oiled to capture harmful particulates without restricting the airflow your RC8 needs to perform. The pleated cotton medium is bonded between durable aluminium wire mesh screens that maintain their shape under sustained high-rpm use, ensuring the filter profile never collapses against the airbox walls. The end caps are sealed to prevent unfiltered air from bypassing the media — a critical detail on a high-performance twin like the 1190.

Performance on Road and Track

The RC8 1190's aggressive V-twin responds noticeably to improved air delivery. By removing the restrictive OEM paper element and replacing it with the free-flowing K&N unit, you allow the airbox to operate at its designed capacity rather than being choked by the factory compromise between filtration and cost. The result is a more immediate throttle response from low rpm, stronger mid-range pull, and a marginal but real improvement in top-end horsepower — all without touching the fuel mapping or airbox lid.

Fitment and Compatibility

The K&N KT-1108 is a direct OEM-replacement air filter confirmed for the following:

• KTM RC8 1190 — model years 2008, 2009, 2010, 2011

No airbox modifications are required. The filter locates on the existing rubber sealing surface and secures with the standard retaining clips.

Specifications