Exhaust

Superior power than stock systems Available with titanium and stainless steel headers FMF's Factory Forward Engineering centralizes mass and is less prone to crash damage Innovative rear end cap features simple installation of tuning tip inserts or spark...

Developed over years of championship off-road racing Twin-stage core design for lower sound output and extended life of packing material Comes standard with spark arrestor Fits stock and PowerBomb header. MUFFLER Q4 S/A YFZ450

Developed over years of championship off-road racing Twin-stage core design for lower sound output and extended life of packing material Comes standard with spark arrestor Fits stock and PowerBomb header. MUFFLER Q4 SA YFZ450

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you donÆt need to hear the power, just feel the power! Less sound equals more ground Power gains throughout the entire rpm range Spark arrestor included...

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you donÆt need to hear the power, just feel the power! Less sound equals more ground Power gains throughout the entire rpm range Spark arrestor included...

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you donÆt need to hear the power, just feel the power! Less sound equals more ground Power gains throughout the entire rpm range Spark arrestor included...

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you donÆt need to hear the power, just feel the power! Less sound equals more ground Power gains throughout the entire rpm range Spark arrestor included...

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you donÆt need to hear the power, just feel the power! Less sound equals more ground Power gains throughout the entire rpm range Spark arrestor included...

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you donÆt need to hear the power, just feel the power! Less sound equals more ground Power gains throughout the entire rpm range Spark arrestor included...

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you donÆt need to hear the power, just feel the power! Less sound equals more ground Power gains throughout the entire rpm range Spark arrestor included...

The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you donÆt need to hear the power, just feel the power! Less sound equals more ground Power gains throughout the entire rpm range Spark arrestor included...

The Q series features advanced engineering to precisely locate baffles and chambers to absorb sound Less mass to enhance power-to-weight ratio Quiet power with minimal sacrifice for performance Developed over years of championship off-road racing...