The 2011-2014 WK2 Jeep Grand Cherokee is a great combination of American know-how and European flair. The 5.7 does a good job power wise, but can always use a little more. When tested on our dyno it produced 280 All Wheel HP (whp) which in our opinion is de-tuned and capable of so much more.More power to tow:With the RIPP Supercharger system installed we netted 420whp (AWD) at just 6psi on an otherwise stock vehicle.That's an incredible 150whp gain to all four wheels! That will give you enough power to tow with ease. No more struggling over those long grades, no more judging distance to maintain pulling speed, and best of all no more running the engine up in high RPM's. The RIPP Supercharger system will give you the power you need when you need it.More power to race:That's right, if racing is what you're looking for then consider the numbers. 420whp at all four wheels. We advertise real-world HP. To put it in perspective, 420whp is more wheel HP than a stock 2014 392 V8 SRT Jeep, in fact that's more HP even if that 392 had full exhaust headers, cat-back high performance exhaust, a cold air intake and a custom performance tune. So go a head, pull up to that light and let it RIPP, you'll catch them sleeping.Complete System:RIPP Supercharger Systems come complete with everything you or your installer needs to get through the very easy6-8 hour install. No need to keep shopping after you buy our system like our competitors. Check out the long list of quality parts below, you'll be hard pressed to find anything you won't like.Vortech V3 Si Trim Supercharger (Self Contained)Vortech Race Blow Off ValvePlug and Play 80lbs Injectors (New Siemens)Front Mounted Intercooler3.5in Boost PipingRIPP Filtered Catch CanDiablo Pre-Programmed Intune (standard supercharger tune)Powder Coated Mounting BracketsGates BeltK&N Custom Air FilterNGK Iridium Plugs (colder)Hardware4 Ply Black CouplersVacuum linesZiptiesFully Illustrated Color Instructions1 Year WarrantyTech line with Customer ServicePENDING: Legal for use in California *Horse Power Measured at the Rear wheel (not crank)** All RIPP WHP levels are measured at the rear wheel, not at the crank. Be careful when comparing HP to WHP. WHP levels vary depending on tire and gear combination as rotational mass comes into play, this affects both Naturally Aspirated (NA) and Forced Induction (FI) total output. *** RIPP makes no claims in increased MPG, clients have reported this on all RIPP and public social media. We cannot guaranty all end users will experience this. There are simply too many variables out of RIPP's control. ****Although our tune included with this system and calibrated for your vehicle the user is responsible for any further Dyno tuning to refine the calibration to their liking. The tune should be considered standard. The user should look forward to a proper Dyno tuning to really get the most out of their system .RIPP cannot be responsible for discrepancies between different dyno readings available throughout the industry. Many dynometers read in different net output depending on manufacture, style, elevation, and temperature. RIPP advertises SAE HP captured at the wheel instead of at the crank for the most realistic scenario as possible. 0-60 times and quarter mile times may vary based on driving style and other variable out of our control.