FMF Q4 Hex Slip-On Muffler CRF450R 2021-2023 041601 1821-2042 Progression Jacket 0 does not require modification

0 does not require modification to stock components

The classic elasticated entrance is easy to use and promotes comfort in any situation

Designs that fit either the standard stock casings or the factory race kit alternator covers

KTM 250 SX-F 2022 1/2

oversized K&N high flow air filter equals longer life

FMF Q4 Hex Slip-On Muffler CRF450R 2021-2023 041601 1821-2042 Progression Jacket 0 does not require modificationLess sound equals more ground Meets FIM World Enduro sound regulations Power gains throughout the entire rpm range Spark arrestor included Pounds lighter than stock Rugged design for off road endurance Made in the U. S. A.