Knopf Auto has products to help increase horsepower & fuel mileage, from trusted names like Edge, Banks, BullyDog, K&N, AFE, S&B, AirAid, and many more!

Come see displays of our most popular items, including the Bully Dog GT Tuners for gas & diesel trucks.

The Triple Dog Gauge Tuner or GT is four products in one; a vehicle engine tuner, monitor, gauge and diagnostic device all in a single unit.

The GT dramatically improves the utility of your vehicle by increasing horsepower, improving fuel economy and providing a comprehensive set of monitoring features and diagnostic functions.

This product is incomparable to other tuning products because it has the largest feature set and the widest range of vehicle applications from a single product part number.