How Exhaust Headers Improve Horsepower and Sound on 351m/400 Engines
The V8 351M and 400 engines mark a clawing part of American muscle history. Straining grills and bulky cars from the 70s are powered by these motors, however, their power potential is often shelved by the factory exhaust systems. Properly crafted 351m 400 headers can change the mundane narrative of these engines. They can unlock…