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 ...

To begin the header-building process, a stash of exhaust items including U-bends, collectors, header flanges, and VKB flanges were ordered from SPD Exhaust and promptly sent out for pre-polishing.

Learn how to build custom exhaust headers for your muscle car with this how to tech article from the 2008 March issue of Car Craft Magazine.

Technical article on how exhaust headers work. News. Reviews. Buyer's Guide. Videos. Magazines. The Future. Events. Ask MOTORTREND Beta. How Headers Work. Using Tubes to Make Your Rod More Streetable.

If you've added a new intake and exhaust, or any other performance parts from this list, tuning your ECU lets your engine make the most of those changes to make more power and run its best.

Back now to measurement. To see how well the exhaust on your car flows, all you need to do is to temporarily plumb a pressure gauge to the front of the exhaust. Any normal pressure gauge (including a ...

Exhaust wraps come in rolls of several feet and allow you to cover the motorcycle exhaust pipes like a comprehensive bandage, wrapping and overlapping the header tubes.

Q. I need to get the exhaust headers off my Suzuki GSX600F while the engine is out of the frame to repair an oil leak. All the exhaust bolts are off the studs, but the pipes themselves are wedged ...

Upgrade the sound, look, and performance of your vehicle with these exhaust systems www.thedrive.com Get The Drive’s daily newsletter The latest car news, reviews, and features.