IMO if you want LOUD... If you want MEAN... with the ability to keep the stock notes this is 100% for you. So... What can I say, but this has been my favorite Mod of any car EVER. I had been looking for the perfect exhaust for me. Something that was original, LOUD, ZERO Drone, and the ability to be as quiet as stock when I wanted it. Well Boys I found it! Thursday I was in communication with Chuck the owner of BadlanzHPE (515-491-8678), and they produce exhaust cutouts / Dump Valves. I ordered the following for our Stinger GT Set ups: High Performance Exhaust Kit (Custom Y-Neck) - 2.5" / Stainless Steel / Dual Exhaust $265.00 Turndown Pipes (Custom) Including Low Pro - 2.5" Stainless Steel 30.00 EA (Need 2) I had the parts at my door Friday by noon with expedited shipping from BadlanzHPE. The customer service was on point. He worked with me to get these out within the hour so I can have to install on Saturday. I took the cutouts to a local muffler shop (who do the most amazing welds) they charged me $50 a side to to the welding and install and another $40 bucks to do the wiring (yes i was lazy and you could do this yourself fairly easily). These are not for the faint of heart. These are EXTREMELY LOUD and I'm sure loud enough to get pulled over if you are being an ass. Graded Review Exhaust Installation 3/10 - You need a professional who can weld and weld well if you want to have the same experience I am having. If you are a welder than im sure this would be a 10/10 for ease, but I am not. once cutouts are installed the installation of the motor and turndown is a 10/10 extremely easy. Wiring Installation - 10/10 you simply run the wire across the cross bars by the mid pipes and up through the wheel well. Pull your ECU, run the wiring through the firewall and find where you want to hook up your switch. Sound 15/10 - Like f*cking NASCAR They sound so damn good. Very loud, not ricey whatsoever just pure throaty throttle and the beauty of the Angel whistling through our turbos. Drone - 8/10 - No drone if you close the valves lol. Yes these have drone if you run in sports mode valves open, you usually rev around 2k RPM when not hitting on the pedal there is zero drone when even opened up. On highways you can open the valves when you feel like getting the juices flowing and close them up when you want to just cruise. When closed there is zero difference from the Stock sound. ITs not almost like stock its exactly stock sound. Customer Satisfaction - 10/10 - Nothing greater than dealing with Owners who take calls. The genuinely care about their business and make this smooth for you. Overall Grade - 9/10 if this was something I could do the complete install it would be a 10/10 but I cant weld I posted some vids on youtube, but my phone auto lowers background noise (exhaust) and raises the volume of my voice. Im having a friend do some videos next weekend with actually recording equipment for you guys. Cold Start Warm Start IMO if you want LOUD... If you want MEAN... with the ability to keep the stock notes this is 100% for you. If your interested in buying these tell Chuck you read a Kia Stinger Review from Jesse and ask him for a discount THESE ALSO HAVE A 5 YEAR GUARANTEE ON THE MOTOR!