Optimum exhaust flow is critical to maximizing the efficiency of any engine. After all, an engine is just a sophisticated air pump – and the easier it is to move air in and out, the more efficient the ...

As much as we like the 5.9L Cummins powerplant, the stock exhaust manifold is constrictive and contorted, interfering with the flow of gases to the turbo and downpipe. That, in turn, can produce the ...

An integrated Exhaust Manifold, or "headifold," is an exhaust manifold cast into an engine's cylinder head and cooled by antifreeze. This type of design, where the exhaust manifold is no longer a ...

Only a few things are so aggravating that I would rather let my Corvettesit in the garage than drive it until it's repaired. Exhaust leaks areat the top of the list. Repairing exhaust leaks requires ...

that squash the pipe and can only fabricate exhaust from 2 -inch diameter tubing, Mopar owners are fortunate to have one of the best resources available for aftermarket exhaust, Tube Technologies, Inc ...

No matter how many times we test them, it still amazes us how easy it is to make power with GM's LS series of engines. Even something as ordinary as a high-mileage 5.3L will respond to boost, and do ...

When Volkswagen's third-generation EA888 1.8-liter turbo four-cylinder engine came out, we noted a particularly unique feature that's somewhat uncommon in passenger car engines: The exhaust manifold ...

We install Supersprint RHD manifolds and exhaust on our BMW E36 M3 and take it to the dyno to see the performance gains. How much power does this upgrade add? Watch the full install and testing ...