Flo-Pro Performance Exhaust and its distributor Thunder Diesel & Performance are facing fines of $1.6 million in relation to a 2018 EPA investigation into the companies’ alleged violation of the Clean ...

While we live in the land of excess, it only makes sense that having more has never hurt anyone—unless we're talking about debt. I've never seen anyone complain about having too much food for their ...

SpinTech is reportedly the only muffler manufacturer to offer a complete line of oval inlets/outlets, ranging from a 2 1/2-inch to a whopping 5-inch oval. The oval design comes in handy, especially as ...

These are the most common sizes and shapes of the XR-1 mufflers. The oval is the most popular for street cars because it doesn't hang down as far as the others and has more packing material. After all ...