4" Aluminum Shell
The Performance Series is assembled on an durable 6063-T6 aluminum alloy shell, with magnesium and silicon as the alloying elements. A high-temp powder coat can be applied for a completely custom look.
Equal Power Distribution
Featuring a 2 1/8" unrestricted core, the Performance Series core has a special hole pattern that allows the exhaust system to increase power evenly throughout the RPM range.
Deep Trademark Sound
This is the feature that sets HMF apart from any other after-market exhaust. The sound coming from the Performance Series can be described as a deep aggressive, angry tone.
