When it comes to 'bagged trucks, most of the tech revolves around how to get crossmembers and suspension components above the frame line - who wants to drag that stuff? So, we're assuming you all know how to move the tranny crossmember up, but what do you do with the exhaust besides cutting off the tailpipe? Thanks to MagnaFlow's Hot Rod Kit, you can design your own pipes to your specific needs without having to go to an exhaust shop. Hot Rod Kits feature mandrel-bent universal tubing in various straight and curved sections in 2-1/4-, 2-1/2-, or 3-inch diameters. You might be thinking about whether or not this will this affect emissions legality. As long as you don't move the factory cat placement, you'll be fine, which is why most aftermarket systems are after-cat setups. If you can weld in a C-notch or shave your door handles, then you can do this.

Your selection in tubing size should be based mostly off your engine size. For instance, assuming the engine is not force-inducted and the engine is operating at normal speed (no higher that about 5,800 rpm), 2- through 2-1/4-inch-diameter exhaust tubing will support 200 ci. At 2-1/4- to 2-1/2-inch exhaust tubing, a 250ci engine can be supported. At 2-1/2- to 3-inch tubing, a 350ci engine can be supported. At 3- to 4-inch, a 400ci engine can be supported. This information is based on flow, so if you're running a true dual (not two pipes in one muffler, or two pipes in one cat) system, you can double the number of cubic inches the exhaust system will support.

You will find some slight overlap in the supplied information, but this all is dependent on how many bends and how long the exhaust tubing is. Your best bet is to look at the job first, take some measurements, and estimate how many bends will be in place, and how much tubing will be used. Call the techs at MagnaFlow and relay the information to them. They will be more than willing to help you determine what size would be best for your project. Here's a quick show and tell, thanks to John Meyer of Clean Cut Creations, on a Hot Rod Kit install.

SOURCE
Clean Cut Creations MagnaFlow Performance Exhaust
22961 Arroyo Vista
Rancho Santa Margarita
CA  92688
800-824-8664
www.magnaflow.com