If our breakdown didn't help you out much, then you can check your driver's door information sticker to find out your wheelbase, which is listed under "WB" beneath the bar code and paint color code. Check the image below for an example.
The first cat-back we tested was the aFe Mach Force XP 3" Stainless Steel kit. The guys over at Extreme got aFe's kit installed with some fairly minor cutting, and off we went with our cameras to a nearby road. aFe's kit falls squarely in the "good" category when it comes to aftermarket exhaust kits. Not too aggressive, not too loud, not too raspy. It's the perfect kit for anyone who wants a little more roar without a huge increase in sound. In-cabin sound is noticeable when you step on the throttle, with only the slightest hint that there's an aftermarket exhaust kit on the truck at cruising and idle. Anyway, check out our clip below.
Up next is the Solo Performance M400 4" Cat-Back Exhaust Kit. This F150 5.0L kit was much easier to install, due to the fact Solo provides separate kits for both 145" wheelbases and 157" wheelbases that let the systems bolt right up to your truck without cutting (unless you have any other wheelbase size). The MR400 has a few features that allow you to adjust the sound of your F150 exhaust system to some degree. The most noticeable of which is the kit's unique J-Pipe design that helps cancel out drone and rasp, but can also be removed for a more aggressive sound. Secondly, the muffler is reversible allowing you to face its perforation toward or away from your exhaust flow for a quieter or louder tone. We configured this kit for the quietest sound for our testing, and even then, the MR400 system was deeper, louder, and more aggressive aFe's Mach Force XP System. Check out the video below:
2011-2014 F150 5.0L MBRP XP-Series 3" Single Side Exit Cat-Back Exhaust Kit. This MBRP XP Series cat-back features a stock-style single side exit configuration and uses larger tubing and a performance muffler to give your truck a brutal new sound, more horsepower, extra torque, improved fuel economy, and faster throttle response all at once. The XP Series cat-back kit is the perfect balance of performance, sound, fit, and quality and makes a great all around upgrade.
2011-2014 F150 5.0L Magnaflow 3" Turn-Down Cat-back Exhaust Kit. This kit features a dumped exhaust tip right after the muffler that pours exhaust gas right into the pavement (or dirt) directly underneath your truck with minimal muffling. The kit's aggressive muffler design and unique style let it produce a huge, throaty roar that you and everyone will instantly notice.
2011-2014 F150 5.0L Magnaflow Cat-back Exhaust Kit. This Magnaflow F150 cat-back exhaust kit features 3.0" tubing that's all mandrel-bent instead of crimped to give your truck improved exhaust outflow for power and torque gains. The kit features a specially-designed Magnaflow muffler that provides a nice, deep tone without a a lot interior drone or rasp, making it perfect for just about any application. The kit comes with a 4" polished tip in a single side exit design for a great, OE-style look.
2011-2014 F150 5.0L Solo Performance MACH-X Dual Exhaust System - 145" Wheel Base. The Solo Mach-X exhaust kit can get you the deep, throaty, and extremely aggressive exhaust note that you've always wanted for your 5.0L truck as a direct bolt-on replacement for your truck's weak factory cat-back system. The Solo Performance Mach-X kit is by far one of the best sounding cat-back systems for the 5.0L F150s, and won't even bother your wife and kids while you're out cruising.
2011-2014 F150 5.0L Borla ATAK Cat-back Exhaust System. Huge "wow" factor! The Borla ATAK Cat-Back exhaust is Borla's loudest, proudest, and most aggressive system they have for the 2011 to 2014 F150 5.0L trucks. This mean exhaust kit lets your powerful 5.0L truck sing at full volume with a deep, muscle-car like growl that lets the whole town know you're packing something extra. On top of the amazing new sound, the Borla ATAK cat-back system reduces back pressure with its mandrel-bent tubing and high-flow multi-core mufflers to give your truck some extra horsepower and torque. The Borla ATAK system is one of the best ways to add a race car growl to your truck in practically no time at all.
2011-2014 F150 5.0L MBRP XP-Series 2.5" Dual Rear Exit Cat-Back Exhaust Kit. This MBRP XP Series Cat-Back Exhaust kit has a dual rear exit configuration that's combined with more efficient exhaust tubing and a specially designed MBRP performance muffler that all work together to give your 2011 to 2014 F150 5.0L V8 a thunderous, deep exhaust note along with increase horsepower, more torque, improved fuel economy, and faster throttle response.