PRO CIRCUIT

Quiet Core and Quiet Tips inserts produce a more subdued exhaust note

The wire screen inside a 4-stroke's air filter cage is non-conducive to producing horsepowerIn the good ol' days, riders cut the wire screen out of the cage to get maximum airflow to the top end, but...

Due to problems with the stock CR250R exhaust flange, Pro Circuit designed a much more durable replacement exhaust flange that is CNC-machined making it less susceptible to breakingWorks with both...

Pro Circuit Exhaust Flange 141001 Honda -- CR250R -- (2003, 2004)

Offers huge performance gainsCan be used for racing or recreation and can bolt onto the stock head pipe or one of Pro Circuit's replacement head pipes in minutesComes equipped with a removable USFS...

Designed to be used with OEM stock head pipes or Pro Circuit head pipesUltra-responsive performanceIncredible horsepower gains when compared to stockDeveloped to increase the horsepower and torque...

Quite Tips inserts produce a more subdued exhaust note

Offers improved performance and durability off-road riders will appreciateStainless steel mid pipeA United States Forest Service approved spark arrestor comes equipped making it easy to alternate...

Offers improved performance and durability off-road riders will appreciateStainless steel mid pipeA United States Forest Service approved spark arrestor comes equipped making it easy to alternate...

Quiet Core and Quiet Tips inserts produce a more subdued exhaust note

Pro Circuit Silencer 1152325K KTM -- 250 SX -- (2024, 2023); KTM -- 300 XC -- (2024, 2023); KTM -- 300 XC-W -- (2024); Husqvarna -- TE 300 -- (2024)

Pro Circuit Silencer 1152312K KTM -- 125 SX -- (2024, 2023); KTM -- 150 SX -- (2025); KTM -- 125 XC -- (2023, 2024); Gas Gas -- MC 125 -- (2023, 2024); Husqvarna -- TC 125 -- (2023, 2024)