This filter features DNA®’s Stage 2 kit eliminates the OEM intake snorkel of ROYAL ENFIELD models and offers higher performance and better intake sound.
A perfect airtight sealing and trouble free Stage 2 kit installation for the user is guaranteed by using a high quality EVA seal.
This Stage 2 kit is designed to replace the stock plastic air box intake. Combined with the R-RE35N21-01 will increase the Airflow, Filtering Efficiency, Power, Torque and Throttle response.
The airflow of this new DNA Stage 2 combined ALWAYS with the DNA Stage 1 Air Filter (R-RE35N21-01) is +99.48% more than the OEM air filter with ROYAL ENFIELD air box cover applied!
Stock air box with DNA S2 & S1 air filter flow : 1917 lit/min @ 10 mBar corrected @ 25degrees Celsius.
Stock airbox with stock cover & OEM air filter: 961 lit/min @ 10 mBar corrected @ 25degrees Celsius.
This DNA® Stage 2 kit is designed as a High Flow product for: ‘Race use only’.
Fuel recalibration is suggested.
Air Flow DataPower by quality you can trust!
The DNA High Perfomance Air Filter R-RE35CL22-S2-COMBO +99.48% increase in air flow & 98-99% filtering efficiency
961 LTR/MIN CFM
Stock Air Filter
1917 LTR/MIN CFM
Power by quality you can trust!
Power by quality you can trust!We, at DNA, proudly introduce a filter that can last the life of the vehicle. Strict quality control for construction & materials, chosen only by their highest quality, are some of the factors that allow us to offer a Lifetime Warranty!
1. The DNA Cotton
2. The DNA Wire Mesh
3. The DNA Filtering Media
4. The DNA Filter Oil
5. The DNA PU (elastomer polyurethane)
6. The DNA EVA (Ethylene Vinyl Acetate polymer) closed cell seals
7. The DNA FCd design technology
This very special cotton is designed by DNA's R&D engineers for High Performance filtering purposes. The basic media is a non woven surgical cotton gauze with a modified TEX & THREAD, with extremely high strength of break. This unique cotton media, actually is a "hairy hybrid" featuring extremely high air flow rates and excellent filtering efficiency that exceeds 98%.
Buy Together
DNA Air Filter Service Kit for Motorsport PN: DSK-3001Auto
DNA Air Filter Service Kit Generation 2
22.60
Lifetime Warranty!The DNA High-Performance Filter is a next-generation, high-quality air filter made of multi-layered, 100% cotton gauze, infused with special DNA oil.Learn more
The DNA Air Flow Tests
For the air flow tests, we use the most advanced flow bench available today. The ROTRONICS FlowScan, is a totally computerized flow bench that measures:
Mass of the air
Flow of the air
Temperature of the air
Absolute air pressure
Differential air pressure
Speed of the air at various points (Pit ot tubes)
Absolute humidity of the air
The complete procedure is automated and computer controlled, eliminating human errors.
The DNA Dyno Tests
For the Dyno Tests, we use the industry standard Dynojet chassis dyno equipped with eddy current load control, Dynojet 250LC. Our dyno cell is equipped with a variable flow air cooling system, designed to precisely simulate real world conditions.
