DNA Air Box Cover Stage 2 for Classic 350/ Meteor 350 (21-24)

DNA Air Box Cover Stage 2 for Classic 350/ Meteor 350 (21-24)

The DNA Air Box Cover Stage 2 for Classic 350/ Meteor 350 (21-24) replaces the stock plastic air box intake and eliminates the OEM intake snorkel. When combined with the DNA Stage 1 Air Filter R-RE35N21-01, it delivers a measured 99.48% increase in airflow over the OEM setup. Visit our website for more products Dirt Street.

Stage 2 Air Box Cover Design

This DNA Stage 2 kit replaces part of the original Royal Enfield air box. It removes the OEM intake snorkel and creates a higher-flow intake configuration.

Moreover, the kit uses DNA’s advanced FCd design and a high-quality EVA seal. The EVA seal helps provide airtight sealing and supports trouble-free installation.

DNA Stage 1 Filter Compatibility

The Stage 2 cover works with the DNA Stage 1 Air Filter R-RE35N21-01, which is sold separately. For the stated airflow results, you must use the Stage 2 kit together with the DNA Stage 1 filter.

The combined setup increases measured airflow while supporting filtering efficiency, power, torque, and throttle response.

Airflow Performance

The DNA Stage 2 kit combined with the DNA Stage 1 filter provides 99.48% more airflow than the OEM air filter with the Royal Enfield air box cover.

The DNA S1 and S2 setup records 1917 LTR/MIN at 10 mBar corrected at 25°C. In comparison, the stock air box with the OEM cover and air filter records 961 LTR/MIN under the same test conditions.

Therefore, the supplied airflow data shows a substantial increase over the standard intake setup.

Race Use Application

The DNA Air Box Cover Stage 2 for Classic 350/ Meteor 350 (21-24) is designed as a High Flow product for race use only. It suits applications where increased intake airflow is the primary requirement.

Furthermore, removing the OEM intake snorkel creates a different intake configuration and offers better intake sound, according to the supplied product information.

Secure Installation

The Stage 2 kit includes the air box cover and uses a high-quality EVA seal. This seal provides airtight sealing between the cover and the air box.

The kit replaces the stock plastic air box intake. For the stated performance figures, combine it with the DNA Stage 1 Air Filter R-RE35N21-01.

Product Specifications

• Filter Use: Race use
• Box Includes: Cover
• Filter Design: DNA’s Advanced FCd
• OEM Cross Reference: 1570251
• Stage Application: Stage 2
• Filtering Efficiency: 98-99%
• Increase in Air Flow: 99.48%
• DNA Air Filter Air Flow: 1917 LTR/MIN
• OEM Air Filter Air Flow: 961 LTR/MIN
• Compatible Stage 1 Filter: R-RE35N21-01
• Fuel Recalibration: Suggested
• Application: Race use only

Important Compatibility Information

The Stage 2 kit works with the DNA Stage 1 Air Filter R-RE35N21-01, sold separately. The stated airflow figures apply specifically to the combined DNA Stage 1 and Stage 2 setup.

Note: This DNA Stage 2 kit is designed for race use only, and fuel recalibration is suggested.