Diesel pickups have gained significant popularity and acceptance with buyers in recent years, and the trend is sure to continue to gain momentum. Many owners feel the urge to upgrade and customize these trucks to suit their needs. Performing upgrades that still respect local emissions requirements can be challenging, though, when attempting to get more power from an already potent diesel platform. The Cummins 6.7L engine in our ’09 Dodge Ram has experienced some law-abiding upgrades in the form of a California-legal tuner and cold-air intake assembly. To get the most out of these mods, we needed to upgrade the exhaust to let the engine exhale as efficiently as it can inhale. We made the call to the experts at MBRP Exhaust and ordered up one of its new XP Series exhaust kits designed for our Dodge platform.
Unboxing the new exhaust system revealed a nicely finished T409 stainless steel 4-inch tube and a highly polished 5-inch angle-cut bolt-on tip. All the necessary hardware was included, allowing us to get the truck set up with no welding required. The only main modification to the exhaust happens if you are installing it on a Quad Cab model (like ours). MBRP ships the kits ready to bolt onto the Mega Cab models, and fitment to the Quad Cabs requires trimming the intermediate tube down to fit properly. The provided instructions make the process easy, and with a coating of antiseize on each fastener, the setup was done and ready to hit the road. We noticed quicker throttle response and a snappier feeling from the already healthy engine, making this a must-have mod for any performance diesel enthusiast.
| The complete MBRP XP Series kit includes 4-inch T409 stainless steel tubing, a polished 5-inch tip, and all the necessary hangers and clamps.
| In order to get the new components in place, the OEM parts need to be removed. A quick hit with an impact drill, and the factory exhaust clamps before and after the factory muffler were loosened.
| MBRPs Performance Exhaust Installation
| The rubber exhaust hangers can be tricky to manipulate, but with some careful disassembly and rotating they were conquered with ease.
| With the stock DPF-back exhaust out of the truck, we took a moment to compare it to the new MBRP setup. It’s easy to see how this upgrade looks and performs better than the original.
| Despite the different shape of the tubing, the exhaust fit well and the hangers were properly located for an easy install.
| Dodge simply angle-cut the original tailpipe and provided a boring, run-of-the-mill look. MBRP’s exhaust tip provides a clean and finished appearance with a larger, more aggressive look.
| Getting back to work, we had to cut the mid-pipe down to 13 inches for our Quad Cab truck. The system ships as a drop-in for the Mega Cab units. A simple chop saw made quick work of the 16-gauge stainless tubing.
| MBRPs Performance Exhaust Cut
| MBRPs Performance Exhaust Mid Pipe Cut
| It is important to clean up any burrs left in place by the saw, both inside and out. These little buggers can make an easy job turn into a bad day that ends at the hospital. Safety first!
| As with any fastener that is exposed to the elements, we always apply a generous coating of antiseize so we can be sure the bolts are serviceable in the future if need be. These can corrode in place in a very short timeframe if left uncoated.
| With the cutting, cleaning, and prepping done, we slid the mid-pipe in place and made sure the hangers were seated in the factory rubber grommets properly.
| With the mid-pipe, tailpipe, and clamps in position, the exhaust setup was ready to be aligned and snugged up. We always install the components loosely first to make sure the fitment is in check before making the connections permanent. Once verified, the hardware was tightened.
| MBRPs Performance Exhaust Setup
| We moved on to complete the installation by prepping the exhaust tip with antiseize before slipping it over the tailpipe.
| Once it was in place and the correct angle was determined, the tip was snugged up and the installation was done. It is important to note that an exhaust tailpipe moves quite a bit along with the engine. We took this into account and left a 1-inch gap for freedom of movement.
| This complete installation can be done in less than an hour with great results. The fit and finish of the system on the truck is top notch and the sound quality and increased power are noticeable.