Let me start off by saying that these powersticks are loud, aggressive and sound sweet! I've had a good two years with em' and I believe that having them on with the H-pipe actually resulted in some low-end gain. But unfortunately I have not had the good luck with the non existent drone that others have been producing from their setups with the sticks. While I am usually the only one in the truck I can withstand it but after making an 8 hour trip to Houston and a 5 hour trip to Dallas with a truck load of people my setup is pretty loud and gets annoying after about 2-3 hours. It seems that everybody has dumped their setups so it may be the tips that I put on mine that makes it too loud. But anyways I finally pulled the trigger on the exhaust I've wanted ever since I've had my truck. I got a great deal on a Corsa-sport and in two weeks I'll be proud to say I'm a Corsa owner. Now my powerstick setup has an H-pipe up front and when I take it down I am going to leave the mufflers and H-pipe as a "bolt up" system. So if anybody is interested in purchasing a true dual/H-pipe setup keep your eyes open in about two weeks or just PM me if your interested now...Now don't think I am bashing on the sticks because I love the powerstick setup.I am just ready for something new!