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Complete exhaust kit for your 250cc buggy! This kit from Hammerhead Performance comes with the exhaust, header pipe, mounting hardware, carburetor jets, UNI filter, air intake elbow, and 32mm pumper carburetor!

Best 250cc bang for your buck!

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75mm drop-in big bore kit for 250cc buggies. No crankcase alteration needed!

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Cylinder head and body gasket set for our 75mm drop-in big bore kit.

Best 250cc bang for your buck!

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You want this. Seriously.

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The Level 2 package upgrades you to the best selling Dr. Pulley racing variator, a yellow main clutch spring, and Dr. Pulley sliders!

Optional red main clutch spring also available.

Stock Variator for GY6 engines

On Special!

Custom-manufactured extra-long throttle cable for use with the Koso slide carburetors!

On Special!

Performance rollers for GY6 150cc variators. Colors may vary from picture.

Click picture or title to see available weights

Now offering Dr Pulley Roller weights in some sizes!