As far as figuring out how big to make the exhaust, the calculation is fairly simple, once you know a couple of basic engine constants: An engine requires about 2.2 CFM per horsepower, and exhaust ...

With that in mind, we attempted to build a set of custom exhaust headers from two pairs of old ones we had lying around. The goal was to make them work in a front-mounted turbo application.

With the headers on the engine, Jeff found that the first three pipes on the driver's side were pretty well set, and only the fourth pipe still needed work. It's certainly a jigsaw to make 12-feet ...

Technical article on how exhaust headers workHeaders do more than just funnel spent gases out of the engine compartment less restrictively than manifolds; they draw spent gases from the combustion ...

Want to make your own custom exhaust muffler or replace your car’s muffler without the need for professional tools? Watch as a chill mechanic shows you how to design and craft a high-performance ...