Replacement filters for your S&B Intake are available with cotton (Cleanable) or dry (Extendable) filter media. Both offer similar performance characteristics, so the decision comes down to how you want to maintain your filter.
 
COTTON CLEANABLE
8 layer cotton filter media with red oil.
Can be cleaned and re-oiled.
Easy to maintain using S&B Precision II Cleaning Kit.
 
DRY EXTENDABLE
Performance is comparable to cotton (Cleanable) filters.
Extend the life of the filter by blowing it out with compressed air.
Ideal for dry, dusty driving conditions.