FMF Mini Powercore 4 Spark Arrestor Exhaust Honda CRF/XR 80-100 | 041015 dirt An impressive outer plate shape

An impressive outer plate shape that offers a curved form to reduce weight and increase appeal is connected together with inner plates and pins that feature lightening holes to further reduce mass

Twin Air is proud to announce our latest product

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FMF Mini Powercore 4 Spark Arrestor Exhaust Honda CRF/XR 80-100 | 041015 dirt An impressive outer plate shapeThe Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore System or as a Spark Arrestor Version, the Mini Powercore 4 features a Hi Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel header. Its pounds lighter than stock and you will swear the motor has been bored and stroked with the first twist of