Not sure what size exhaust your vehicle needs? Learn how to choose the right diameter and what can go wrong if it’s too big ...

See All 19 Photos Because of catalytic converter sizing and the general fit, the X-shape crossover section is 2.5 inches in diameter, while the exhaust pipes step up to a 3-inch tubing.

The Power of 2.5- vs. 3-Inch Exhaust You're sitting around with your typical street/strip V-8 and wondering, should I get 2.5-inch-diameter exhaust pipes and mufflers, or should I go 3-inch?

Since Lester makes a serious 560 hp, a 3-inch system seemed an ideal choice ... to his shop and spent a day massaging the pipes. An exhaust system may not be very romantic, but when installed ...

After idling for a second, the driver gives us a few revs, with the new pipes providing a nice ... the new Chevy Silverado ZR2 cat-back exhaust includes 3-inch and 2.5-inch piping, providing ...

See All 31 Photos The truth is that, based on power output and use, a 3-inch exhaust isn't always the right moveand the same can be said of long tube headers. And while stainless pipes are always ...

Corsa Performance Exhaust Systems is offering up new cat-back pipes for full-size GM SUVs equipped ... and a straight-through muffler design with 3-inch piping. A variety of exhaust tips and ...

Using a 3-by-5-inch card — like an index card — you can tell pretty quickly if there's a back pressure problem. Simply hold the card over the opening of the exhaust pipe and watch how the card ...