All I can say about this exhaust is WOW!! This the best $$ you can spend to increase the performance of your GL1500. I debated on spending the money, but after a failed attempt with another manufactures product, I decided to call and order the Torque Masters. The installation was very easy and then the added power and sound make it all worth the price. If you want to wake up your Goldwing, then get these mufflers, trust me, you will love them as much as I do.