2013 Ram 1500 5.7 Hemi Handyman. First of all, super fast shipping and great packaging. I wanted a little more sound than the stock muffler, but not too loud so I couldn't enjoy music or a good conversation while driving. And this baby giving birth to this Flowmaster American Thunder 50 sounds amazing. It's not much louder than my OEM cruising down the interstate at 70-75 mph, but damn it, if you need your Hemi to take off, this muffler will do it. Sounds aggressive and you can feel the torque gain. Installation I sprayed 3 bolts with BP Blaster penetration spray and where the tubes enter the 3 joints I sprayed some WD-40. I drank a cup of coffee for 15 minutes. Then I went back to work and all in all it took exactly 60 minutes to complete. Super easy installation.