I picked up a set of refurbished I-Forged Sprint wheels for my GTS (from a friend) and I ended up having to replace one of the wheels. Dan Lesser at Viper Specialties hooked me up with the order. His customer service was outstanding and the product was delivered as promised. The price was great too. I highly recommend Dan and Viper Specialty for all of your Viper or I-Forged needs. I will definitely be a repeat customer. Great vendor!