Custom slip-on exhaust systems from American Custom are a great way to create a unique, custom look and sound for your Harley Davidson®. But, if you are looking for a custom look and sound and maximum performance from your Harley®, American Custom has the product for you. Not only do American Custom slip-on mufflers allow you maximum customization for the look and sound of your Harley, they also increase the performance of your Harley®.

But don’t take our word for it… After extensive testing, including performance evaluation tests using the latest in Dynojet® Dynameter technology, Harley’s® equipped with American Custom slip-on mufflers consistently outperformed stock exhaust pipes both in terms of torque and horse power. In fact, American Custom slip-on mufflers topped out at nearly 68 horsepower and over 82 foot pounds of torque, a substantial increase over stock exhaust pipes. Specifically, at 2100 rpm, Harley’s® with American Custom slip-on mufflers outperformed stock pipes by nearly 15% in terms of horse power and torque. The Dynojet® results show that American Custom’s one of a kind tone-flex exhaust system will increase the overall performance of your Harley® from low end to high end RPM.

In addition to maximum customization for the look and sound of your Harley®, American Custom slip-on custom exhaust pipes are the best value around. So if you are looking for a custom look and sound that actually increases the performance of your Harley®, American Custom is the place for you!