Stage 2: Designed for machines with stock or mildly modified engines using well-designed stock or aftermarket exhausts with a modified airbox and a stock or replacement air filter. For applications where airbox modifications improve overall engine performance A power increase of 8% can be achieved in most cases
NOTE: Suzuki DRZ250 Stage 2, Kawasaki KLX400 Stage 2, Suzuki DRZ400E Stage 2: Not for California models