2018-2023Rubicon · L4.1997cc
Notes: 2018: California Air Resources Board Exempt: No · 2019: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2020: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2021: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2022: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2023: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2018-2023Sport · L4.1997cc
Notes: 2018: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2019: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2020: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2021: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2022: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2023: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2018-2023Sport S · L4.1997cc
Notes: 2018: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2019: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2020: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2021: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2022: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2023: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2018-2022Unlimited Rubicon · L4.1997cc
Notes: 2018: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2019: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2020: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2021: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2022: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2018-2021Unlimited Sahara · L4.1997cc
Notes: 2018: California Air Resources Board Exempt: No · 2019: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2020: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2021: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2018-2022Unlimited Sport · L4.1997cc
Notes: 2018: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2019: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2020: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2021: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2022: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2018-2022Unlimited Sport S · L4.1997cc
Notes: 2018: California Air Resources Board Exempt: No · 2019: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2020: Red Round; Cotton Gauze; Estimated Horsepower Gain 12.54 HP At 4993 RPM;Not Legal For Sale Or Use In California Californ · 2021: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube · 2022: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
202180th Anniversary · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021Freedom · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021Islander · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021Unlimited 80th Anniversary · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021Unlimited Freedom · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021-2022Unlimited High Altitude · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021-2022Unlimited High Altitude 4xe · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021Unlimited Islander · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021-2022Unlimited Rubicon 4xe · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021-2022Unlimited Sahara 4xe · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021-2022Unlimited Sahara Altitude · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021-2022Unlimited Sport Altitude · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021-2022Unlimited Willys · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021-2022Unlimited Willys Sport · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021-2022Willys · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2021-2022Willys Sport · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube
2023Freedom · L4.1997cc
Notes: California Air Resources Board Exempt: No; 63 Series - Off-Road Use; Airbox Replacement w/Tube