I'm lovin this 2011 Jeep Grand Cherokee. I wanted to share a few Mods completed and my feeling on each.

275/55/20 - Love the look and ride of the larger tire.

Front leveling kit 1.75 inch - Love the look. No change in handling. The truck looks level. Front is 1.5 inch lower than rear now.

Wheel Spacers 1.25 inch - Love the ride. It seems to stabilize the truck. In the past the truck was pushed around more on the highway by passing trucks or wind. Handles so much better and feels more solid on the road. And it looks more aggressive.

CAI K&N - It seems to be breathing better.

Exhaust - Removed the large center muffler or Resonator and running straight pipes. Replaced rear suit case mufflers or resonator with 11inch Magnaflows. The Jeep has a "Growl". I had replaced just the mufflers at first and ran this way for about 2 months. It had a purr, but now it has a growl. Also, after removing the center muffler thingy - the gas pedal seems to be free. Not as much restriction. I'm curious if you just remove the center muffler thingy and leave the rear suit case muffler thing and what it would sound like. Knowing what I know now - I would have tried that.

Diablo tuner - I've been running their stock 91 Octane tune that comes with the tuner. I think I need to fine tune the tune. It allowed me to adjust for the larger tire size so Speedo is correct.

I'll post pictures shortly.

 

You should probably move this thread to the technical discussion/ jeep build section of the forum. Just letting you know before you get too carried away. Welcome to the forum! Sounds like you got a nice jeep on your hands.