Porting & Polishing - we will customize port & polish to your preferences and riding style. With the Dyno we are able to tell real world results that a flow bench would fall short of. We see the results of all the top companies porting work on the Dyno and this allows us to set the bar higher.

Cyclinder Head Resurfacing - customized. You tell us your riding needs and we will design a set up that will balance performance and reliability.

Boring and Honing cylinders. If you need just the basic bore and hone or you are looking for a big bore we do it all. HPA also does all resleeving for 2 or 4 stroke applications.

Valve Guide. Oversized Valves. We use top of the line NEWAY cutters to get the best valve angles. No cheap knock offs.

Our horsepower readings are backed by our DYNOJET Eddy Current Dynamometer. We custom tune each bike to your riding preference. Bike with Power Commanders are custom mapped in all throttle positions under a load. This means that your bike is tuned in all throttle positions, not just open throtttle. HPA is the only shop in a four state area that is capable of tuning your bike or quad and backing it with true results. Don't use a dyno that is incapable of loading your bike at every RPM range. Today's bikes' and quads' fuel systems and engines are too complicated for seat of the pants wide open throttle tuning. Stop in and watch us tune to see how perfect we get your toy.